I'm probably one of the worst offenders when it comes to uploading photo's that look very similar. I'm really trying to be better about it, really I am! One of these days I need to sit down and propose deletions of many of my pictures but if anyone else happens to be browsing the database and comes across entries of mine that have lots of what appear to be duplicates or close matches ... feel free to help me out and propose deletion of said photo's.
