I was going to comment on the actual continents, until I saw the reason it was skewed as such (note that, IRL, all continents are coincidentally wider at the north than the south. Not that there is any real reason for that, as far as I am aware, but I tend to prefer maps that follow a similar patter).
On another note, while searching for a supplement to my horrific artistic ability, I found this:
http://www-cs-students.stanford.edu/~amitp/game-programming/polygon-map-generation/mapgen2.swf
On another note, while searching for a supplement to my horrific artistic ability, I found this:
http://www-cs-students.stanford.edu/~amitp/game-programming/polygon-map-generation/mapgen2.swf