Image rules are as followed;

• Your display image may not contain any nudity whatsoever. Keep those in your profile gallery.
• Do not post any images which infringe on the copyrights of others hard work! Photographers put alot of time into photo's, if you have permission make sure you give credit, each picture you upload can have a description...
• Snuff photo's are absolutely not permitted in anyway.

For the rest, use your common sense.