Large Image Project

I need someone to find 10,000 cool free stock photos. The user will take the photos and using a provided software manipulate each photo into a 1,2,3,4,5,6,7,8 panel photo. The user will then save this copy. User will categorizes the photos, requires user to identify the number of photos and select from a single topic from a menu of 20 topics that represents the photo. Final output will be providing all photos and excel file with category data.