This looks wonderful. I especially like the attention to lighting direction with the background elements. Edit: If @JordanW says you got great results then you should feel honored ;)
I don't want to rock the boat...cause your result looks great! As someone who got a couple passes on the Naughty Dog Texture Art Test (and became very familiar with it), I'd say this looks like you used it as your starting point and modified the scene/models to your liking. The result looks great but I'm pretty convinced…