Honestly I don't know what to say. It's hard to say what's wrong... or even really what to work on with such a tiny sample.
As for where to go with it, that's such a personal thing.
It's like drawing an eye, describing a body type, and then asking the ethers for advice on the pose. Ya know?
When I'm stuck, I act out the story out loud by myself. I feel like a dork, but sometimes my mouth moves faster than my head and I strike gold.
Good luck!