Big fan of the art direction on this one! I do love the puzzle-platformer-esque feel of this game and I think it's a concept worth exploring further in the future (should you want to do that)
My one big gripe is that the physics are a bit weird - but outside of that you've done a great job!
Edit: Actually there is a second major gripe I have and that's the cards being able to collide with the player. It's just a bit annoying having to move the cards around but it didn't take from the experience too much. Good work!