These are X-Frog Spruce Trees (click for a bit bigger view).

I added a bump map to the tree that's closest to the camera and noodled with the trees' colors to make them appear as though they are at different distances.

I'll check nudity (just in case), don't wanna get in trouble.  ; )

 Don't sweat the petty things, and don't pet the sweaty things!  ; )