It's not generally advisable to post pics of identifiable people on a public website. Who knows WHO could be watchign...and downloading..and editing, and using his four gfs and one big momma at the same time...Sorry, just my paranoia talking.
But does prom-gal give you permission to do so? Serious, I've been seriously scalded for doing something that remotely has to do with her (my her) without persmission.