A found triptych! The colours need a bit of a boost. My eye is drawn to the woman in the foreground, a few more seconds and she would have passed the street sign and not shared her position as the subject with it.
OK, now this is going to be difficult to comment on without sounding very harsh.
The whole image has a 'pink' tinge, which should have been corrected in post processing.
The image has no real central theme except for window frames you used to form the three panels.
I know this meets the challenge, but I am not a big fan on just cutting up one nice shot into 3 with distracting borders. Seems to easy, no real creativity required. This is the first one i've seen with no outside border. makes me feel the divisions are just part of the window you are looking out - reduces the illusion of a tryptich.