To frame or not to frame

A big thing in 'street photography', I suppose, is the lack of a frame, the freedom from it, the capturing of a random, unboundaried flash of space and time that is in some way affecting. But the point here, of course, is precisely the frame of door and window shapes behind the figure. She's walking past the front entrance of Tate Modern and the framed figure fortuitously evokes the pictures inside - perhaps was only noticed because, approaching the entrance, I was already 'seeing' the paintings I'd come to look at.