Yes, it's his rock and no, you can't sit there.
In hindsight I'd have rather drawn him in a swamp, but mountains it was. This was supposed to be a speed paint, since the original inks (not that you can see them any more) are from an 2.5" x 3.5" ATC I was planning to paint in watercolour, and I coloured it digitally just to give me an idea of how I wanted to paint him. Then I got lost in the details (it took a while to get used to, but I'm really loving my Cintiq for this sort of thing now!).