Okay, 5/5 to me. Maybe not for others, but I think that you mixed aesthetics and gameplay in a very cohesive and original experience.
The game is easy to use (just a mouse), invites you to learn how to solve each puzzle by experimenting, has re-playability as you can configure it from the beginning, sounds goes with the experience... I just feel it is a very solid proposal. Could even be one of those games that you find in GNU/Linux distros.
No friction. Clear. Relaxing. It just works.
Would definitely give it a try on LSD.