OMG. This looks soo nice! The art is amazing. The levels look really good. The music was perfect. Too bad it did not loop during the gameplay.
I also like the combination of a platformer with the collecting and crafting and the puzzling which item to use where etc.
I think you could easily make this into a full game with more crafting recipes and more levels. Great job!
one note: I was able to place the catapult inside the roof structure where I was not able to use it anymore. I think this is probably not intended.