On Skydrive I have a reference folder with thousands of images, the majority are illustrated. A few of them display breasts and I've removed them from the Skydrive folders because it was suggested they violate the terms of service.  Would this be true?

None of these are pornographic in nature and are more in line with a photo of a Greek statue or renaissance painting.  

I work as an illustrator and am a frequent Tumblr user, these cloud folders help keep my work and home computer synced in terms of reference.