this model has the most interesting/beautiful hands. Its hard to find hand stock that I actually feel interested drawing, as weird as that sounds. Some people just have more curvy fingers and dynamic joints than other people
I drew two of these hands and some from "Male!Hands 5" in my sketchbook to practise drawing hands. Thank you very much for the great stock, it was incredibly helpful for me! ^__^ Here's a scan of the sketchbook page: fav.me/d7c0qs3
While we are glad you found our stock useful, we unfortunately have to point out that it is against our terms to sell photo-manipulated works derived from our stock. Specifically:
"Works that used this stock as references, which are original content and not copies of these stock images, can be distributed commercially and without attribution, even if they would otherwise fall under the definition of being an "Adaptation" as per the license."
While we realize the wording isn't perfectly clear (although we have an asterisk at the end of that clause referring to a footnote that explains the intent more clearly on our terms), the material that clause exempts is specifically original works that simply used the stock as a general reference for anatomy/composition/movement/etc. Photo-manipulation might be original artwork in spirit/essence, but it involves direct copies of the stock, even if it is heavily edited afterwords, or in this case, plays a small role in the picture. Similarly, unless it's exempted by that clause, there needs to be fairly readily available attribution displayed, although we tend to be slightly more lenient with enforcing that one.
Aside from the legalities, though, we like the image, and think you did a good job with it. If you really want to sell photo-manipulation work that includes our stock, we can discuss more specific terms, although in that case we would want some compensation.