You are more than welcome to use them for drawing/painting referrence.
However, please note me for permission first if you want to use them for photomanipulation.
If you used my stock, please send me a link of your work, and link back to me is appriciated.
I don't mind if you use the pieces under photography section as referrence.
However, please do not make profit out of drawings/paintings that's heavily referrenced off my photos (which means if your piece is almost the same as my original photo, please do not sell it without my permission).DO NOT
use the photos for photomanipulation.
Also if you used my photo as referrence, I'd appriciate a link back.