What you can do is look at others' pattern photos. It's so easy to be "artistic". Just think of something that's out of ordinary. Be creative.
You could have someone or model them yourself too since all you are showing are feet.
Browse through photos of sock patterns online you will get a lot of ideas. For example, something like this
is easy to do; or this
; or this
, all from knitty dot com.
I would love to take photos for you but I don't think you live near me...