Augusta, yes kind of. I didn't say breasts are not nasty to look at, it's any bodily function that is unpleasant for a stranger (not a friend/partner) to see, anything that goes with a squealchy sound doubly so, I'm just squeamish! As for nude breasts or general nudity, I don't mind it if a person is beautiful to me, but generally no I don't like naked bodies, I prefer people in nicely fitting clothes, without all flaws exposed!
Comparisons with Madonnas of Boticelli are a bit misplaced! They are a symbol of motherhood rather a real women, perfect, with no gritty side or sound and no splashing milk! Having said that, even though I like art and have even worked for an art gallery - I rarely like nudes in art when done realistically, most buyers of the female Nudes are men, unsurprisingly. I'm not aroused or excited by them, I wouldn't mind a beautiful-looking man picture but I don't enjoy looking at naked women - not in RL either, why would I? so no I wouldn't want the feeding Madonna pictures in my house, I'd rather have a great portrait or landscape of flowers! The only nudes I like is the marble Greek sculptures, gods and goddesses, they of course have no gritty details of the sexual parts incl breasts AND they are modestly proportioned. Art is nothing like the reality, in other words.
Motherhood and indeed breastfeeding is a beautiful thing - between the mother/parents and her child, no one else is required to like the sight! I know that if I were to feed I'd always use a scarf - I would hate the feeling of no privacy (for me, as well as for others, if I couldn't use a scarf I'd expel into a bottle if I had to go out) I equally don't parade around shower rooms in a gym. Each to their own, and I know sometimes with big breasts or unruly children it's impossibe to cover up - so of course go ahead and do what you need to do. Just don't expect some sort of delight or some people not to be put off their food, they'll just have to put the feeding mother first and their own sensitivities second, but mothers equally could be considerate if it's at all possible in her situation.