i don't know if it will help much with your particular style of map, but using the feather command helps me blend colors/lines etc
My Finished Maps
Works in Progress(or abandoned tests)
My Tutorials:
Explanation of Layer Masks in GIMP
How to create ISO Mountains in GIMP/PS using the Smudge tool
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Unless otherwise stated by me in the post, all work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.
Well.. technically, I think I am just few points shy to be considered genius level(thought i am close!).However, since I did not really invent the techniques, nor the software, what I truely am is a overtly zealous evangelist of trying the "darnedest" to never make destructive edits. Not always possible of course, but I look for it whenever I can. If I have to spend 5 extra minutes now, but can edit infinitely later with less effort, I would rather do that...
My Finished Maps
Works in Progress(or abandoned tests)
My Tutorials:
Explanation of Layer Masks in GIMP
How to create ISO Mountains in GIMP/PS using the Smudge tool
----------------------------------------------------------
Unless otherwise stated by me in the post, all work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.