Hi gwynwas and Lyandra,
Thanks for your comments, I really appreciate the feedback.
I see what you both mean about the dunes. They do look like hills. I might have to redraw them and add some more dunes to the brushes.
For the settlements I agree - blur could work. I just used the line tool mostly but maybe I might lower theopacity, trace over, then remove the orginal. Just worried my tracing will make it look very poor!! I'll give them some more work.
Yes, I need to totally redo the mountains.

Thanks for all your help. I hope to update the map soon and add the main feature missing from it. There should be a canal cossing the land between the towns, but it is taking me some time to work out how to draw it.

Kind regards,
Pete