You rally can't release someone else's work under GPL... Plus, though this is art, and there is nothing wrong with nudity...the general public may take offence to it being so openly displayed... Please attach a warning as to content...out of respect for the community.

... don't think the original drawer made this public under GPL. Second... ... a little piece of something like a warning text or something, for those who don't appretiate contents like this, could be very useful IMHO! //Logge