It has no background really, and it doesn't feel epic like I'd imagine the ruins of Lordaeron to be. Maybe you should take the screenshot from a higher perspective, add a fog and some nice mountains or a fade effect in the background. Or both.
Yeah, seems a little small with no depth. Maybe add some dead trees and definetly some sort of colossal thing(s) (Dalaran spires, mountains as Void suggested etc.) in the back ground and add a fog, it looks like you don't have one at the moment.
Your problem here is that the focus on an object is taken away or being hided by the ruins in front.
Possible focus objects here could be the abomination or the church.
A little tip add some stone gargoyles on the top of the church, it would look kinda cool
Focus is not on abom. The abom and church aid in keeping the focus on the ruins and the picture as a whole. I would recommend reading about focal points and focus points in some drawing text for a more further explanation.
But more importantly, consider looking at the doodads, the placement, the usage.
So far no suggestions have really touched what I was looking for. And I don't know that untill something really groundbreaking is said.
No, fog will do the trick. Also, make the picture a bit more interesting, maybe a few dead trees... For now it looks like a discarded blizzard-made scenery. I know that sounds cruel but it's just my humble opinion. I'd give it 3/10