I made this texture for the male from pfunked's low poly Base Human Model set: 

http://opengameart.org/content/base-human-models-low-poly

And I used this source image from wikimedia commons

https://secure.wikimedia.org/wikipedia/commons/wiki/File:Naked_human_mal...

The texture is 1024 by 1024

It has no genetalia since pfunked's model does not include any modeling for it.

Now that I have made a base nude texture to work from, creating additional alternate textures for it should be relatively easy, if you have any requests for skins you'd like to see for him, feel free to let me know and I'll see what I can do.