Can you guys please stop debating about whether her body is beautiful/ugly/acceptable/...? Whatever your opinion on the matter is, it's irrelevant. The point is the tattoo.
Even if you say "come on, her body is awesome", you're still being rude. A woman's body is not a product: that your opinion is that it's good quality doesn't make your statement any less sexist.
Hmm, no it doesn't. Calling an African person black is not racist, it's called being observant. Prejudices formed based on that observation make you a racist. The woman obviously is very proud of what she's been blessed with, and regardless of whether or not she is fishing for complements, the type of tattoo this is and the types of tattoos she already has (sleeve, jailhouse "family" tatoo) indicate she likes to at the very least converse about her ink.