In case you have got only 1 picture of a girl of whom you would like an ID, then - before posting your request - first use flw. options for image search:

Google Image Search:

http://www.google.com/imghp

click the 'camera' -icon and switch off the adult-filter (SafeSearch) if necessary

or

TinEye:

http://www.tineye.com

You will be amazed about the rate of success !

Moreover, that way you will not waste your one and only daily request....