I think this is a neat idea, but there needs to be a bit more feedback and also contrast on some of these puzzles. I had a hard time picking things out from the background, including the little puzzle pieces that got spit out as I randomly clicked around. Everything is so small! As it stands, it's a literal pixel hunt.
I think there were also some triggers that were broken. Some of the letters on the right side lit up when I clicked on something, but it didn't feel like there was any correlation. Really confusing and hard to understand what I was supposed to do.