The full series from that session: https://www.reddit.com/r/tattoos/comments/1g57kzy/full_body_suit_in_progress_by_me_ivan_zagusta/
The rest of his self-published work: https://www.reddit.com/user/Ivan_Zagusta/submitted/
I’d love to get a tattoo from this guy at some point. It’s such a beautifully intricate style that none of the other really talented /r/tattoos artists take on.
As far as pain goes, this style of tattoo (mostly lines, hatched shading, no fill) would probably be on the lower end of the spectrum. It’s all subjective, but you’d probably be able to manage just fine unless you have some special sensitivity to pain.