After picking the painting, I needed to get an idea of the two characters who would talk about her. With the idea of her being in a suburban nightclub, I thought the characters would be two dodgy, south london wideboys.
Here's a few examples of the kind of characters I had in mind:-
1) Gary Hobbs and Minty from Eastenders
2) Harry Enfield and Paul Whitehouse
Lee and Lance on Youtube
3) Danny Dyer
So basically one character is slightly savvy, but not too much more so than his mate.