I take it these were all made 5+ years ago?
First off Ubuntu DOES NOT make the wallpapers with women on them.
and second Linux is awesome and is much better than these stupid copycat OS's (microsoft windblows).
For folks that don't understand the Ubuntu poster, an early release of Ubuntu had a calender app that featured artistic nudes to reflect Ubuntu's focus on "Linux for Human Beings". Although they were in good taste, they stirred up a whole mess o' controversy.