Showing the ground might have made it even more interesting. So we could see exactly how high he was. As is, it still looks high and I would never do that. Well, maybe on accident!
Fantastic colours in this. And great focus. I would have cropped a lot more of the grey out, it's quite dulling to the overall effect. I think the 'feel' of his height in the picture wouldn't have been too badly effected by this.