I don't know anything about computer art. Is this a photo altered on the computer, or is it completely computer generated? Either way, I like it. Looks like a picture taken on top of a mountain.
pretty interesting, but for me, there's something wrong with the light. Winter light is pretty harsh with high glare and flatness. To me the sky seems more like late spring? The sun in winter can cut into your orbs. Maybe also too blue? *shrug* something. Did you use any ref for this render?
Jim