I really like this, puzzles are really good and got my brain working, if this ends up a full game it would be interesting to see how all the other features fit in so would definitely play that,
My only tiny criticism would be the tilemap you've used, the character looks really nice, but I feel the tiles are maybe a little too square, I feel if you added a few extra tiles to the map which would help round off the sharp edges, in the same way the characters edges are rounded it would make it look a lot nicer.
overall though it's really good, congrats :)