Nice concept for a puzzle game, there is a lot of directions you could go in if you were to take it further. I thinking the countdown timer is maybe a bit too much, a few close calls felt okay but replaying levels just because I couldn't find something in time didn't feel great. I like the challenge of solving the puzzle instead of speed in this case but this would depend on the ramp of difficulty in puzzle. Good job regardless, a nice little snapshot of what it could be!