Here's a collage of a handful of cards created for an indie card game that's up on KS currently, Psi Wars. These images were painted in layers to provide a sort of 3D effect to the card (like a parallax), and you can check those out in action on the page (they're pretty cool!)

https://www.kickstarter.com/projects/376980438/psi-wars-a-card-game-evolution?ref=created_projects

This is just a small selection of cards I hand-picked from the bunch :)