you should make the cliffs a bit more interesting, it's a bit plain atm. And try have camera slightly more hovering so you can really see the cliff, and the border like ppl mentioned, try making that dissapear^^
Try add some elevations in the forest below and see what you get(but very uncertain about this, and the purple fog in the forest is a bit missplaced, it kinda just cuts through everything. One last thing, those big rock like things in the forests, that's a village?
But it's still nice : D, gives you christmas feelings ^^