I don't really plan to spend more time on it.
I know some elements could be more polished , like the green tone of the grass, the desert trees, etc... But I can't allow myself to spend more time on this project : I'm a freelance designer and I have a LOT of things to do.
Otherwise, if someone want to take Lugaru HD and try to make it even better, it would be great and I'll gladly host it (if the quality deserves it).
Hint : if you show me an ugly screen because of a texture of mine, I'm sure I'll do anything to improve it because I can't bear bad work...