Hmmm at first look a nice wall but when i look closer at it i find it disturbing. First of all i love the way she is in colour with her authumn red and gold. for that i find it a bit of a downer that this wallpaper was black and white. furthur more your vectoring needs some adjusting.

her head and hair come out nice, but the trouble starts at the back of her robe, her golden rod with speartip looks more like a bamboo stick cous of the overlayin branches (more on that furtheron) but worst part is that it seems to pass trough the clothing cous there is a dark line over it, that makes it look that way. Then under her shoulders the parts of clothing with 2 gaps around them look strange, like a huge gap at her arms on both sides. does look quite strange. And worst of all would be the fact that you didnt use lining on her hands, that makes it look really plaine and strange. no fingers?! that way it looks more like she isnt holding her weapon, and i find her for-the-vieuwers-right arm a bit off, wasnt that closer to the weapon. not to mention the shape of that hand. it looks more like a claw then a hand.

onwards to the frontstuff of the background, lots of branches brushes/stock photos. they look nice but a bit to realistic to fit the vector imo, theyre a bit to small and next to that you used here and there overlay effect on them, wich comes out very strange on some stuff (top right over a bg tree) ore combined with the other brushes you used. I can see that the lightning is straight of the brush (have it myself also :P) not bad looks nice on b/w wall but the rounds near the text i find very misfitting and non-suited to go with the lightning.
furthermore i can see overlayed/soft light/etc brushes of butterflys and leaves. and there is also rain and lightning, then why can butterflys still fly around. it is a bit out of place if youre wanting realism.

onward to the (somehow baddest) last part, the back of the background. now this has some huge flaws in it, you got youre front branches wich are thin and european tree like, back bg are normal trees but on the left side you can also see somethin like palms and rainforest trees there, whut are those doing htere?! you created a nice fog but it needs very much tweaking?! vieuw up from the bleach text and between to butterflys you can see a horizontal line, use a faded edge eraser ore featherd selection to clear that out.
then look down from the IES of memories to see the bottom of 1 of the trees and the bottom of the further aways three. i can see clear selection edges on this that you deleted, i find it very bad looking. drag a selection over it, feather it for 10 pixels and press delete and ya done. that way you would have a far better three coming from the fog. and just under the left side of her weapon 1 of the tropical plants seems cut off, might had to do bout the fact that you dont have a clear outline on the weapon.

Now please dont think i hate your wall and want to make it black and stuff, im just giving you my 100% honest comment in order for you to learn from it and improve from it. when i make walls i rather see honest comment that stuff like: i like it ^^ +fav. I always want to know whut they like, why and whuts wrong with the wall. I hope you understand this.

Good luck and keep it up ^^
'Beckor