Wow.
Get three artists and this is what you get. Visuals are amazing, lots of little details added all around that really improve the overall look.
Level designs are great, I like how lots of them can get the "oh wait" feeling, of you think something will work and then realize that it won't work at all 3 steps into the sequence.
While the idea of "build a sequence and it replays back" has been done a lot, this one does add nice new ideas to it, like having them be in a 2d plane, and the controls can be moved around themselves too.
I think you introduce new mechanics too quickly at the start, while there are better puzzles to be made when there are more options to work with, I think it is better to introduce a mechanic and then really try to use it in a variety of ways before adding more mechanics. Then having the new mechanics show how the old ones can see be expanded upon.
Amazing work.