User blog comment:JackFrost23/How do I get pictures I've posted off the Wikia server?/@comment-20644-20100713020500

Hi. Contributions you make to a wiki belong to the community as a whole. You can ask the admins of the wiki in question to remove the images, but&mdash;unless you own the images or have a legitimate claim to them&mdash;those admins don't have to if they feel that the images benefit the community.

Hope that helps clear that up. =)