I see the issue with the narrowness, but only as it is unusual. The borders,like said above, do alternate awkwardly. It is also VERY bland. Try coloring in the ocean, or making something have more texture.
You shouldn't have advertised your map. Now this is what's gonna happen:
1: Squiggles criticizes your map 2: Squiggles copies your map 3: Squiggles gets suspended 4: Squiggles does the same thing to another unsuspecting mapmaker and never actually finishes his one and only half decent map