Really nice work.
Is there anywhere that I can get those fonts?
I actually rather like the mountains the way they are. Simple. It kind of looks like a map that one adventurer drew for another in a tavern while enjoying good beer. Making it more realistic might actually spoil that look a bit (though I'd love to see in anyway. Maybe I'm wrong ).
Have you considered a wet circle in a corner where someone put his dirty mug on it?
As for the resolution: upload your images as attachments (see below the message window when you post something) rather than using the image tags. You get a thumbnail that way and the images open in a different window when you click on them.
EDIT: hmm, I suppose a semi-intoxicated dwarf drawing a fellow adventurer a map, wouldn't have bothered with the colours. Yeah, I'm interested in seeing those mountains