Quite an impressive job, considering it was done in only two weeks! It ain't easy to do tilesets, sprites, animations and all that next to programming, so you should be proud! I've got three points of feedback, and I also agree with the other comments' feedback:
-The y-sorting pivot of the trees seems to be on the high side. In other words, you can go up quite far before the tree is rendered in front of the player.
-It's always nice to try to make the UI of a pixel art game pixel art too. You'd be surprised how much that can do for your game in terms of polish!
-Maybe it would be nice to add a sword to the shop, make that cheaper than the bow but make the bow even more expensive.
Good job overall!