This deserves top 100 for sure in my book. Very clever puzzle design, the concept is well thought out and executed on. The ambiance just tickles the senses. Feels very Gris in a way. The subtle animation of the pip as it moves around. I can't say enough good things. Seems like you kept it in scope extremely well.
I don't know if it was intentional but the audio was a bit staticky throughout, I played the web build. Very cool though.