£45 for a jpg, even for candids? Are you high and drunk? Is there even that much purchase/interest from such a localised event?
Also isn't it more valuable to have those on the cat walk eye balling you, therefore make it seem they are posing for you? Otherwise they are just candids.
You have back room access so can I assume you were the main photographer as well? If you were why are they not looking at you, if you weren't, how are you able to charge such high prices for the photography?