Wow! That looks truly awesome! I really like the mountain-ranges. I think it could use some more terrain differentiation (for example - forests) but all in all, this is an awesome piece of map-art. If i can, i'll rep. you.
And yes, please do the campaign work you mentioned in the OP. Also a big YES PLEASE for the WIP thread to see different directions. Very cool project.
Btw, if i am stating wishes already...any chance for a higher resolution of the map? I want to zoom in a lot more than i am able to atm ^^

Last but not least, a question: do you have some fluff/background for the world shown? If so, care to share?