Renders blended in a lot. But doesnt look that bad. Thats the only downfall. other wise looks pretty good.
I don't really like the smudging, I probably would love the colored version of this because the black and white has the colors so nicely blended.
that isnt smudging, but k. and the color one doesnt exist. i added a b&w graident at about layer 30 and this has +50.
You could recolor; If you don't know how to do that you can look at some great photo-manipulation tutorials on deviantART.
I am liking the flow but got to agree with Nan here. The Render is blended in a bit too much. Overall, needs colour Z