As @BlackFriar says in his post No. 7 on this thread, in the Catholic Church you’re unlikely to see any depiction of a mother breastfeeding her baby other than the tradtional Virgo Lactans image of Our Lady and the infant Jesus. As for public displays of photographs or paintings of other mothers breastfeeding their babies, attitudes vary from culture to culture and consequently from country to country.
You complain that your previous thread asking the same question met with a poor response. Please bear in mind that there is no reason to expect the Catholic Church to have a single worldwide ruling on cultural issues of that kind.