The first thing to come to mind with this pitcure is happy! It's colourful with all the cute bracelets, but this focus still goes to the camera. Background is a great choice too: Enough colour to complete the picture, but not too obnoxious, just fine. Cheerful!
I hope that you have an external light meter that you can use with it, since the meter in this camera takes obsolete mercury batteries. Actually, I think that Wein makes a substitute battery that will work.