Funny you mention chicken run, I should have looked at it for inspiration

Instead I looked at Gopher Broke -_-
Oh, and would be an admin/moderator be so kind to transfer this to the factory forum or so?
Anyways ...
I started detailing the thing, but my computer started choking

The main problem lies in the grass, it's rather high poly because I modelled each and every blade >_>
Also thinking of redoing the terrain using the paint deformation tools, I fiddled a bit with it and I found the results were much nicer!
So I thought about using alpha planes instead, but the results are far from satisfactory imo. Granted, my grasstexture isn't the best, but I don't really like how it gets lit and how it casts shadows :/ And it looks fake, especially up-close.
See for yourself: