The artwork is consistent, cute, and I think fits nicely with the genre of game you're going for. I did think it was an odd choice to have the map be a top-down perspective when the character is jumping towards the top of the screen and falling towards the bottom. It gives the impression that gravity is pulling everything south instead of down, or this village was built sideways on a cliff face. I agree with jnttzck that it was difficult to discern what was a platform I would be able to stand on, and what was just decoration, which is definitely not what you want in a game where missing a jump could mean losing tons of progress. I also agree that making a rage game for a game jam means most people won't see most of what you've made.