You have a great way of showing depth and scale.
I want to be able to paint like this eventually. The detail and texture you achieve is really cool!
Although the figure is playing such a small part in the overall composition you almost didn't need to put him in there.
But that's just me.
Yeah, Really cool image!)
maybe the figure should be in the center of composition to show more contrast between huge colossus and small human. Like confrontation of two worlds=)
Really nice, great use of "rule of thirds". I would say a perfect composition.