I'm in no way offended by it; I'm a girl, I have boobs, I see 'em every day. But I'm pretty sure the OP intended for the picture to be more about her daughter's face and less about her daughter's boobs, which are front and center here, literally.
As for how the OP should feel about her daughter's tits being in a public forum, I don't really know. I don't have kids, I have no idea how she "should" feel. I know *I* would more than likely be irritated by it, but that's just me. I'm not terribly worried with how other people should feel about their daughter's bits being on the net.
But she wanted critique on the photos. The general consensus is that the photo says, "I've got big boobs". That's probably not something she intended to have happen with her kid. Maybe she did! She might NOT be bothered by it, and that's cool. However, given the composition, the photo is more about her daughter's boobs than her daughter's face. And the OP will not learn from her mistake unless she's told, "Hey, that's a little too much cleavage for the shot."
Boobs are a natural distraction for many people, especially men (how many of the women in this forum have smacked their guy in the head for staring at a woman's chest?). Everyone on the beginner's forum is always quick to point out distraction in other photos, be it a hair clip, a tree in the background, bracelets on the wrong wrist, a stray dust mite, whatever. In the second photo, the boobs are a distraction to me, and obviously to many others. I'm not offended by them. I'm not saying, "ZOMG EVIL BEWBS". I'm not calling anyone a pedophile, or spouting off at the mouth that because her daughter's boobs are on the net, she's a bad mother. I don't care. All she asked for was critique. The critique of many people is, "The boobs are too much." I hardly see how letting her know this is a bad thing if that's the critique she was looking for.