I'd say you already have the skills to make a scene like that!!! to make it look great its time ~ more plants etc the better it will look

is lots of free tuts for blender on grass/forests  and plants ~ groups plants and place with a particle system (use weight paint )

is hard work but its a lot of fun ;-) 

I went ahead and bought it anyway. I haven't watched all of it yet, but so far, you're right about what I could have done anyway, but it has given me a few ideas on how to better get what I want to do without stumbling around trying to figure it out.
Plus, to be honest, I KNOW how to do terrain. I could have done that much in Poser. And I probably could have just bought  forest terrain on sale with a little winding stream.  Heck I have that much in my runtime.  It's the winding dirt ROAD more than anything that I'm after. As far as I've seen, that's something I'll have to make my self. The closest thing I've seen modeled is in Carrara format.