Don't know if everyone knows this we didn't until the CM taking the photos informed us. You can get them to change the look of your photo,we had a pic taking opposite the Fairground ( Big scary clown head) at XIV,whilst waiting for the parade & whilst chatting to the photographer he showed us our photo & advised us to get it down in sepia to make it look old & scary,it turned out brilliantly(especially with our painted faces-tradition!). Perhaps they don't always tell you this because it takes more time?
HTH SD