Excellent pic as usual, Alex! I love the shadows you are able to create...really makes the collages seem real :-D
One of my personal favorates in that regard was the one I did w/ Amber Deluca portrayed as the 150-Amazon movie poster that I posted here a long time back, I think when it was still She-Grew.
Many moons ago, on the alt.amazon newsgroup, I too ran into the handful of her pics out there and used the same photo you did to make a She-Hulk manip of Ms. Souza. I think it first appeared up at Unzipped's old "Homage" site.
You can see I made her suit a darker yellow (can't remember why) as well as airbrushing out her jewelry (which I do with all my She-Hulk manips).
Darkening the suit color? Probably because it helped to better contrast it against her body. I've done something similar with one using Tazzie Colomb, but the reason for changing the color of her posing suit had to do with the context in which I was placing her as a member of the Fantastic Four, complete with the white Number 4 emblem on her chest.
Oh what the hey, here you can take all look and see what I mean -
http://www.amaz0ns.com/index.php?option=com_smf&Itemid=41&topic=1624.0