Kind of has a Family Guy or Simpsons feel to the graphics, IMO. I like it.
Sometimes it's hard to put into words changes that one might make to make things better, especially with some projects possibly being works in progress. But one suggestion I can put into words, food for thought, is to maybe try a wackier looking font, something that looks like Vector Art, and see if it goes well or not with the look of the graphics. It might not too, and might blend in too much to the existing graphics, and make it worse than the pixel font you're using. But it's just what I thought of.