So, Where can I start with this?

The lighting here is wonderful. I love how it's darker at the front of the drawing yet still light enough to see all the details you put into each rock.

I like the tilted square rock, and that lone bush on it. it looks good enough to be a picture! that's some crazy skill you've got there.

I really do want to say more about this, but I have no idea how to continue without my words sounding empty. I can't see anything to criticise either. Truly fantastic.

It looks almost like you are in the drawing, since there is no blur that you'd get with a picture taken by a camera, so where ever you look it's fully focused in a way.

May I ask how long you've been drawing for?