Gods of Odds
Loving YTtalk
I've tried looking on pixabay and weirdly they have hardly anything on there to do with gods.Just be careful pulling images from Google willy-nilly. Make sure anything you use is public domain, creative commons (with the proper attributions), or you have permission/license to use it. Copyright claims suck.
There are plenty of royalty free image sources out there, especially for mythology since there are a ton of depictions old enough to be public domain. Use your Google-Fu young grasshopper.