It could be better, I honestly can't tell why but it's bothering me, it's not bad, that's good. But it could be a lot better, it might be the fact the background is pure black that's holding it back, maybe a darker blue (really dark) or medium or dark grey would be better.
It looks like (from the AO) that you're using Cryengine in a visarea.
If so just use some fog.
Also you could use POM on those rocks to make it a little more exciting.
It's not back, I feel that the subject lacks some material definition and looks a little odd. I just can't put my finger on why.
If you are using Cryengine taking screen shots at quad HD and then resizing them would do a lot to help with that aliasing. http://www.crydev.net/viewtopic.php?f=311&t=92863
Hope that helps.