Tip of the Week: Portraits with the Stars
Ensure that your frame includes a balanced amount of the foreground as well as the sky. After you start the long exposure, use the flash to illuminate the subject in the foreground. Your subject can now safely move out of the frame. The flash will ensure that the subject is sharp while the slow shutterspeed will give the image the starry backdrop you so desire.

Photograph/Abhiruk Lahiri