I love tanlines myself...and on her they remind me almost of Eden Mor's breasts.
Yes, that's true. Eden Mor used to have tan lines on her breasts very often. And she has large areolas, which is another similarity to Nadine. Plus the massive size of both girls' tits (of course I'm talking about the Eden Mor back in the good old days). So in this new photo set Nadine's breasts indeed look quite "Eden Mor-esque".
Nadine usually doesn't have tan lines - she obviously prefers to sunbathe nude. In Germany that's no big deal, they have their FKK culture so the overall attitude towards nudity is relaxed. However, as her IG followers know, Nadine was on vacation in Mexico recently, so it's a safe guess she got her tan lines there.