I had to go look up what the Mayan version of the yinyang was and it's a pretty cool design XD
Was your friend's photo anything like this one?
If so there's a few online so you could probably post them if you wanted and just say where they came from and the photographer if that happened to be on your friends' photos :)
Can see why you wouldn't want to make a direct copy, you'd be there forever XD
Ahh I actually didnt know they were on the internet. Then I didn't have to go though the work to try to photograph them without reflection. I will update The post with The reference soon Then :) thank tou for finding it
Post edited now. Thanks again for finding it. Did you find the other one aswell? When I search for Mayan indian yingyang they don't show up anywhere. If you find the other one please send me the link. I want to draw that one too
I only found this one because I reverse image searched your drawing and it happened to come up with a match :)
Then I know I have done something right if you can reverse image search my drawing and find the reference photo XD