Thanks for the comments so far!
@aztec - yoy're almost correct, we've built this tiny skatepark with my friends out of the thin plywood, so it's a little similar to carton
@Inestical and lostclimate - detail/multitexturing is now my objective. Currently i'm using lite-c free, it cannont use shaders, but AFAIK FFP should work
I'll try show the screens with new terrain soon