I think the rocks look good, very cool idea. It could use additional darker shades to give it more depth.
although i don't really understand what the gray pixels represent (rocks maybe? it's not really clear :/), it looks really good!
oh, and I think you should add more shading on the foliage...cause all that light-green is hurting my eyes ^^
other than that it's very good! love it
Yes, I see it in a same way