Hi Harrison,

I may be able to help you out here, as I use GIMP for all my mapmaking. I would be looking to charge a fee for this, but it wouldn't be high considering you don't need labels or locations etc.

Here are a couple of examples of the same style of map that I have created previously. They are slightly different from the Arsheesh tutorial, but I can replicate the style shown there too:

Commission: Aravelle

Realistic Map (WIP)

And here's a very early working image of
a satellite-style Middle-earth map I'm currently working on:

Click image for larger version. 

Name:	Middle-earth2.jpg 
Views:	47 
Size:	2.27 MB 
ID:	71121

If you think my style would suit your map, drop me an email: cirias@live.co.uk

Thanks,
James