How old is she going to be in these pages? If she's in her 20's then the sexualized body is alright I guess, but if she's a minor then it's kinda veering into unsettling territory. I mean yeah, as a girl in her late teens, I'd probably adjust the size of my boobs a little bit or make them a little perkier, but even with an average figure the leery looks from guys can really freak you out. It doesn't feel like a compliment, it feels threatening. I don't imagine she'd be happy with the kind of a attention she'd be getting with a rack that... distinct. It think the problem mostly lies within the boob physics, since that's what makes them stand out so much. If they were drawn with just slightly more realistic physics, I think you'd be fine.
Buuuut on the other hand it's your comic, so feel free to take this with a grain of salt.