it looks like you spent more than an hour or two to create this piece. looking at it is like being in space or anothr planit and walking back to earth. nice piece.
I really like this - especially the concept and the (non-)ground on which the gazer is walking. The figure is a bit bizarre, which I assume is part of the effect you wanted here - as though the head is a lot further away than the rest (hence smaller) as the gazer leans out to see distant places better. I think the spacescape might be improved, though I do realise it isn't meant to be realistic.
And having said all that, I couldn't do a single star of this, and I think the overall effect is very good.