I could have done this better in my opinion
Yours and mine alike.
You can start with generally replacing the horrible looking trees and the grass with
something better, try this thread for reference:
http://www.hiveworkshop.com/forums/terrain-board-267/stone-sword-terraining-mapping-resource-238310/
Also, while I do love me a good ol' felsen rock as much as the next man, they do
require and eye for texture. Seaming them together smoothly is important, and never
never show the side with the strange distorted part, which is exactly what you've done
with the centre rock.
And, for the love of the ufergras, remove those units.
Finally, some of the rocks on the upper right side of the terrain look like they're flying,
either sink them more into the rocks beneath or flip them sideways and rotate them.
I'd also like to see some more patches of grass in between the rocks, because there's
too much grey on this screen.