Toy Puzzle Blocks - Keycaps

Hey all! I was inspired by seeing my nephew playing around with his Geometry/Pattern puzzle blocks and thought it had a really cool color scheme. I have now recreated that in Blender for a keyboard. Let me know what you guys think. Here is a picture of the toys I am talking about: https://images-na.ssl-images-amazon.com/images/I/81x74JlKyTL._AC_SL1500_.jpg

I attached the Render of the keyboard below.

This is my first official render. Any feedback would be highly appreciated as well.