I have posted a map here few months ago and I am still working on it. I have a paper style map, but I am looking to make a Satellite view of the same map. I am stuck looking for texturing techniques and ideas.

Here is a low res of the map I made a few months ago:
Attachment 71594

Most of the time, I am stuck when trying to make realistic Hills and Sea Floor. And I don't want to make a random cloud pattern, it needs to follow the the landmarks on the map.

If you have any techniques that could help me, it would be greatly appreciated.