as far as the image is concerned, you might want to try cropping the image a bit. There is a lot of negative space on the right hand side. Here is kind of what I was thinking.
alway_early___evie_ann_by_nightseye-d9dlf3s.jpg
Also the shadows on the ground are very harsh. When you are playing with light and shadow you've got to think of where the sun is coming from and what sort of shadow and highlightit would produce. There isn't a very strong sense of shadow in the rest of the piece besides on the characters. You might want to add shadows to the valley areas in the distance. That's my 2 cents.