diff --git a/index.html b/index.html
index aa71dde..2f47b6b 100644
--- a/index.html
+++ b/index.html
@@ -29,7 +29,7 @@
             <picture>
               <source type="image/webp" data-srcset="img/Logo-invert.webp">
               <source type="image/png" data-srcset="img/Logo-invert.png">
-              <img class="lazy" data-src="img/Logo-invert.png" style="width: 100px;">
+              <img alt="FOSC Logo" class="lazy" data-src="img/Logo-invert.png" style="width: 100px;">
             </picture>
           </div>
           <nav>
@@ -123,27 +123,27 @@
           <picture>
             <source type="image/webp" data-srcset="img/junction2018.webp">
             <source type="image/jpeg" data-srcset="img/junction2018.jpg">
-            <img class="lazy" data-src="img/junction2018.jpg">
+            <img class="lazy" data-src="img/junction2018.jpg" alt="Winners at Junction 2018">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/santi.webp">
             <source type="image/jpeg" data-srcset="img/santi.jpg">
-            <img class="lazy" data-src="img/santi.jpg">
+            <img class="lazy" data-src="img/santi.jpg" alt="Explaining MCU glitching at Makers Murcia">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/kids.webp">
             <source type="image/jpeg" data-srcset="img/kids.jpg">
-            <img class="lazy" data-src="img/kids.jpg">
+            <img class="lazy" data-src="img/kids.jpg" alt="Showing 3D printing at Semana de la Ciencia">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/sec.webp">
             <source type="image/jpeg" data-srcset="img/sec.jpg">
-            <img class="lazy" data-src="img/sec.jpg">
+            <img class="lazy" data-src="img/sec.jpg" alt="More Semana de la Ciencia">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/junction2018-1.webp">
             <source type="image/jpeg" data-srcset="img/junction2018-1.jpg">
-            <img class="lazy" data-src="img/junction2018-1.jpg">
+            <img class="lazy" data-src="img/junction2018-1.jpg" alt="Hacking at Junction 2018">
           </picture>   
         </div>
         
@@ -151,27 +151,27 @@
           <picture>
             <source type="image/webp" data-srcset="img/app.webp">
             <source type="image/jpeg" data-srcset="img/app.jpg">
-            <img class="lazy" data-src="img/app.jpg">
+            <img class="lazy" data-src="img/app.jpg" alt="Speaking for Puertas Violetas app">
           </picture>  
           <picture>
             <source type="image/webp" data-srcset="img/bitup.webp">
             <source type="image/jpeg" data-srcset="img/bitup.jpg">
-            <img class="lazy" data-src="img/bitup.jpg">
+            <img class="lazy" data-src="img/bitup.jpg" alt="Giving an ESP32 hacking talk at BITUP 2019">
           </picture>  
           <picture>
             <source type="image/webp" data-srcset="img/soldadura.webp">
             <source type="image/jpeg" data-srcset="img/soldadura.jpg">
-            <img class="lazy" data-src="img/soldadura.jpg">
+            <img class="lazy" data-src="img/soldadura.jpg" alt="Learning to solder">
           </picture>  
           <picture>
             <source type="image/webp" data-srcset="img/hacking.webp">
             <source type="image/jpeg" data-srcset="img/hacking.jpg">
-            <img class="lazy" data-src="img/hacking.jpg">
+            <img class="lazy" data-src="img/hacking.jpg" alt="Installing Coreboot open firmware into a Thinkpad x230">
           </picture>  
           <picture>
             <source type="image/webp" data-srcset="img/junction2019-1.webp">
             <source type="image/jpeg" data-srcset="img/junction2019-1.jpg">
-            <img class="lazy" data-src="img/junction2019-1.jpg">
+            <img class="lazy" data-src="img/junction2019-1.jpg" alt="Posing at Junction 2019">
           </picture>  
         </div>
 
@@ -179,22 +179,22 @@
           <picture>
             <source type="image/webp" data-srcset="img/pepemod.webp">
             <source type="image/jpeg" data-srcset="img/pepemod.jpg">
-            <img class="lazy" data-src="img/pepemod.jpg">
+            <img class="lazy" data-src="img/pepemod.jpg" alt="Soldering Nitrocaster's adapter board to a Thinkpad x230">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/atresmedia.webp">
             <source type="image/jpeg" data-srcset="img/atresmedia.jpg">
-            <img class="lazy" data-src="img/atresmedia.jpg">
+            <img class="lazy" data-src="img/atresmedia.jpg" alt="Having fun in Atresmedia">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/junction2019.webp">
             <source type="image/jpeg" data-srcset="img/junction2019.jpg">
-            <img class="lazy" data-src="img/junction2019.jpg">
+            <img class="lazy" data-src="img/junction2019.jpg" alt="Hacking at Junction 2019">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/printer3d.webp">
             <source type="image/jpeg" data-srcset="img/printer3d.jpg">
-            <img class="lazy" data-src="img/printer3d-1.jpg">
+            <img class="lazy" data-src="img/printer3d-1.jpg" alt="3D printer, 3D printing">
           </picture>
         </div>
 
@@ -202,22 +202,22 @@
           <picture>
             <source type="image/webp" data-srcset="img/flp1.webp">
             <source type="image/jpeg" data-srcset="img/flp1.jpg">
-            <img class="lazy" data-src="img/flp1.jpg">
+            <img class="lazy" data-src="img/flp1.jpg" alt="First FOSC LAN Party">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/soldadura1.webp">
             <source type="image/jpeg" data-srcset="img/soldadura1.jpg">
-            <img class="lazy" data-src="img/soldadura1.jpg">
+            <img class="lazy" data-src="img/soldadura1.jpg" alt="Soldering workshop">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/nn1.webp">
             <source type="image/jpeg" data-srcset="img/nn1.jpg">
-            <img class="lazy" data-src="img/nn1.jpg">
+            <img class="lazy" data-src="img/nn1.jpg" alt="Giving an open firmware talk at Navaja Negra 2019">
           </picture>
           <picture>
             <source type="image/webp" data-srcset="img/fosc2.webp">
             <source type="image/jpeg" data-srcset="img/fosc2.jpg">
-            <img class="lazy" data-src="img/fosc2-1.jpg">
+            <img class="lazy" data-src="img/fosc2-1.jpg" alt="Showing some stuff during Cable Amarillo">
           </picture>
         </div>
       </div>