Great art style very dark and gritty. Reminds me of mobile puzzle game the room in that regard.
The ambient lighting definitely needs to be increased, it can be quite difficult to tell if gears are lined up or not. The other thing too that I struggled with is that nothing seems to spin until you get the exact right combination which made trial and error almost impossible.
Overall nice submission - there isn't anything quite like this in all the games I've played so far.