This is the art style I aspire to achieve one day.
As far as I can tell there are no drawbacks other than the earth tones are fairly similar to the woman's skin tones. However, since the time of day is sun rise/set I can forgive the slight pinkish hue in the land even though to me the figure kind of blends into the background - not much mind you, I can still discern what's what.
Aside from making the earth tones a few shades darker, everything else is as close to perfect as can be. Body proportions, attitude, poses, shadows, and lighting effects are all professional quality. I could definitely see this as a cover, or splash page in a graphic novel. As I said in the beginning, I hope to be this good one day. Especially when it comes to drawing women, I would say this is one of the best drawings I have seen in a long while.