From the Realjock photo guidelines, rule 1:
RealjockPhotos must be of you. Your default main photo may not include other persons unless you are joining as a couple. Up-close photos of a single body part do not count as photos of you.
The word of, in this case, most likely would be this definition:
http://www.merriam-webster.com/dictionary/of6 a—used as a function word to indicate belonging or a possessive relationship (king of England)
Therefore as long as the photos belong to whoever is uploading them, then I believe they are in compliance with this rule. Furthermore, the rule only prohibits other persons from being featured on a member's default main photo, but not another organism (pet) or inanimate objects (art).
As for the music, I am far less certain over the legality of use. Perhaps someone else could explain that.