My old introduction:

"I'm a private photo editor for fine art wedding wedding photographers."

 

My new introduction:

"I work with experienced fine art wedding photographers who are so busy they can’t do it all anymore to free up their time and get their sanity back by outsourcing to me the one task taking up most of their time—their photo editing."

 

I can probably tweak this some more. I like this customer-centric way of introducing myself!