I certainly agree. Graphics are a rush job, and most of it is still just stock images. I was barely able to make to UI look somewhat like I intend it to be when I'm completely done with it. It still had stock windows buttons and a cropped Minecraft inventory a day before the deadline, I did my best wih my limited time and understanding of graphic design.
I will certainly create a patch where the UI is cleaned up, and a few convenience features will be added, though I probably won't go through the trouble of creating new assets, unless the game gets a sudden surge in popularity. Mostly because I weren't able to solve my biggest problem with the game, which is that I haven't managed to create enough incentive to make the player really feel an urge to explore.
Music isn't a bad idea, I just didn't bother with it since I couldn't find any public domain music I was happy with. That said I'm open to suggestion, what kind of music could you imagine the game having? I'm looking for a general style so it's okay if you post something that isn't public domain.