HELP...need to find a background

I'm trying to find digital chromakey backdrops gallery with a romantic theme....ie....stars and/or large full moon in the background. It can be a video motion background if necessary. For some odd reason, this theme seems to be very lacking in the software galleries I have googled. Can anyone point me in the right direction?
I will be using the background as a setting for me playing an acoustic guitar for someone. Any help is greatly appreciated;....thanks in advance.