Well .. I made this map yesterday (actually just a remake of an old map) and I was well satisfied until I looked at the ocean and realized, was crap.
I tried to remake the ocean in many ways, but nothing came close to being realistic.
Then simply I pulled out and come to you guys asking for help.
Someone knows how to make a realistic Continental shelf?

HgFZLXy.jpg

By the way, Many thanks to generous Arsheesh for sharing techniques and knowledge in the Tutorial "Eriond - A Tutorial for GIMP and Wilbur".