Nice visuals, creative puzzles and a fun twist on the theme.
Two things I ran into; the first one being the fact that in the level with two crossing light beams, the second lever was a red herring all along and I tried to figure out how to activate both levers at once for way too long before realizing that you only need one and can block the other, not sure if the lever being a red herring was intentional. The second is that the doors sliding closed horizontally seem to kill you, so I expected them to kill me when sliding closed vertically too which led to me not trying the solution of the last level for quite a while.
Other than that, a very nice game!