Your logo is so cool! Switching between the 2 characters to solve the puzzles worked really well too, although I can't say I figured out the last one properly. I just powered through jumping on random platforms and eventually gave up. We'll write that off to me being a bit dim rather than the puzzle not working though.
The building looks slick, and I love the animation for the door dissolving/sliding out of the way, but some of your art (say the line puzzle for instance) could have done with slightly more attention. Definitely very fun to play though, would play any others puzzles if you decide to keep working on it!