So I ended up spending a total of three weeks or so messing around with this, this is as good as it's gonna get so here you go. 

 CREDITS- Oh gosh I should have started posting these a looooong time ago. Sorry. :(

Cave walls
Original Image: somadjinn.deviantart.com/art/T...
Image Owner: somadjinn.deviantart.com/

Cave floor (Kind of?)
Original Image: tigers-stock.deviantart.com/ar...
Image Owner: tigers-stock.deviantart.com/

Model
Original Image: faestock.deviantart.com/art/Br...
Image Owner: faestock.deviantart.com/

Light
Original Image: treyvonistock.deviantart.com/a...
Image Owner: treyvonistock.deviantart.com/