@ Martin
I think you can tell very convoluted storeys, but the image needs to be super 'good' to be able to pull it off, because it needs to hold peoples attention long enough for them to get it, but also needs to be pleasing for the few people that don't get it. I for one love to read into things, but only if it's a challenge, i.e. I don't like to be spoon fed.
@ Op
Below is my honest criticism, which I acknowledge is allot easier for me to sit here and tell you how I would do it, rather than actually doing it, so please don't take offence.
First the technical aspects:
a) Light is too hard.
b) Little emotional connection as no eye contact or a powerful expression.
c) Outfit isn't cute enough and doesn't do your model justice.
d) Too high ISO, I can see some grain, I would have used a slower shutter speed to pick up the ambient and let the flash freeze the subject, and maybe used some accent lights or better yet just done the shoot a little earlier in the day/evening maybe about 6:30 pm or earlier?
e) Background isn't the best, which means there is a little too much depth of field even at F1.8, did you crop quite a large portion of the image and were you quite far from the subject?
Below is what I think may work better in my Opinion.
a) First and foremost make your friends daughter look AMAZING, if she wants to be a model, an obvious story line won't help her. To do this get her glam'd up in her best clothes and makeup and REALLY show her off.
b) Spend some time thinking about where and how you are going to light her to show YOUR skills off.
c) If you can do the above and have plenty of time then throw in a story as well if you like, as a way of giving the image an edge.
For example you could have shot her (looking hot in her best gear) snapping a feather duster, throwing an apron at the camera, or stamping/standing on her old maids uniform in a flattering pose, which signifies the end of an old carrier and the start of a new one.
But like I said it's easy for me to sit here and say you could have done this and that, but I know it's a totally different ball game when your doing it for real. Anyway my final advice is "fail to prepare, prepare to fail".
Regards
Rhys