Help Needed Please to find social media backgrounds for sale

If not allowed here please let me know where i could post this. thanks.

Im looking for shutterstock or behance style background i can buy/use for a friend im doing some work for.

Im a photographer / retoucher but am doing some work on a friends facebook / social media cover image. I have a photo but am looking for high end illustrative or silhouette that will portray corperate / expensive / professional / money as the background

If you know where i could find or search for something like this and what to put as the search criteria to find please let me know. Thanks You

Here is a (Not very Good) example of something similar. http://ift.tt/1OCzSFr

Thanks a lot.

Great design resource

100 Things Every Designer Needs to Know About People (Voices That Matter) Submitted September 18, 2015 at 01:46PM by OrangeDitt http://ift.tt/1P7CTvt