Uh, well, I still think that in spite of the obvious successful effort you put into it, it just wouldn't be a good idea to utilize a previously-existing photo as a texture, no matter how much you tweak it. The morphs are good. There is one other thing you might consider in order to eliminate all worries of copyright infringement, and that is, if you're serious about the whole deal, take some real photos of someone, and be sue you own the rights. If you did it with this, you can do it again. Also, you could do a whole body deal, and not just the head. Personally, my advice would be to not even consider attempting to sell anything that wasn't 100% your's. Even as a freebie, it's not a good idea to do so.