I reckon this might be one of your first hacks (?) If so, don't worry, just keep posting screens of what you've been doing. Feedback is precious when you've just started.
I recommend you to do some searching for "Snowy overworlds" in Google or something similar, so you can gather some reference and inspiration. It will be way better than hearing just what's wrong and not how a nice Overworld could look.
Also, the different widths of the letters in your Title Screen are not looking so good, change them so they look a little bit more well-constructed.