This is the original photo used for reference. What took a considerable amount of time completing the work was adding tattoos.
To see more of Jake Daugherty's photography work:
https://jakedaugherty.photography
To check out Alexander "Sasha" Mirzoyan's art:
https://www.sashamirzoyan.com/
Sasha is also active on Instagram:
https://www.instagram.com/sashamirzoyan_art/