This one is very cool. For one, typically any 3D game where the camera can't be inverted usually loses my old brain very quickly, but in this one the level of vertical movement needed was so minimal that I never even thought about the camera.
The entire experience has a very polished and professional feel to it. The audio was a little too quiet maybe, I had to crank my speakers way up to even realize that there was a background music track.
I'm not a fan of time limits in general, so I honestly think having to rush through was the worst part of the game. Your aesthetic and control design are really begging for a slower-paced exploratory puzzler type of game I think.