I've done the same as Hejdon...use google maps or google earth to find a coast line or island I like. Then I copy that into the Gimp or paint.net, trace the outline, and color or adjust it until I like it. It's taken a while to get good at it, but I'm really starting to like my results.
Attached are two examples. The Greentarn map is actually the northern island of the Philippines, shifted and cropped a bit. Regalport is where Manila is in the real world.
The Kingsholm map is Vanuatu off the east coast of Australia.
Attached are two examples. The Greentarn map is actually the northern island of the Philippines, shifted and cropped a bit. Regalport is where Manila is in the real world.
The Kingsholm map is Vanuatu off the east coast of Australia.