Haha, yeah... it is tricky. I think you actually do quite well considering! This one definitely has some sense of distance. It would probably have a bit more if the cliffs in the foreground were a little less purple than the mountains in the background, maybe a little more... earthy. But I know from experience sometimes when I try that sort of thing, sometimes the picture gets too "busy." How you've got it works, especially because there's still some actual distance from the equine figure. You seem to be able to do really subtle blending even in pencil so I think there's plenty of room for fine-tuning, but still, even as it is I like it!