I find this image very cool. The fact that she's single is stated, which would make one think she's sad, but the stars in the sky inspire hope. That ultimate message of, "There's someone out there . . ."
I like the mood you've created with your choice of colour scheme. She seems quite pensive and deep in thought. I wonder whether she just got out of a relationship and is thinking about the good times or maybe she's glad she's now single.