I feel like you could challenge yourself to weave a longer and more interesting story. I feel like this is an image that you could use to really delve into who the character is and what she is doing there. What I mean is take a good look at her expression, it's unusual for a woman who is wearing a dress like that, and about to go out to a party to appear that pensive. It looks like there is something serious on her mind that you could explore.
You are good at finding evocative images and imagining what might be happening, so why not explore it further?