Her eyes, nose, eyebrows and ears are pretty different. Add in a different hair color and shemll fit right into the crew.
Its unfortunate that people don't see this. Yes, Oda has a "beautiful" women identity issue, but that's a preference of the author and how he draws.
Yamato looks different from Nami just as Vivi did. Robin is pretty unique though, but he's also pretty much copied her timeskip design to be closer to Boa's. Hell, Tashigi became more like Robin lmao.
My point is, Yamato explicitly states she wants to get on Luffys ship, her appearance will have zero bearing on that. Other than her damn jawline, she has unique hair, eyes, brows, clothing, fighting style and personality.
Like, chill the fuck out people, this is not new