I think this depends on sociodemographics... when reading the responses I feel like a lot of the people commenting must be of an older generation where they were man-hating feminists and/or they must not like how they look physically but don't want to be honest and admit that so instead they attack other women and their own decisions (which to me is not feminist at all); they sound really jealous and judgmental.
I personally have never had pictures like that taken of me and if I did, I would only share them with my husband and maybe my sister or a few close friends. I don't think I would like the photos and I wouldn't feel comfortable sharing them on social media because I don't have a lot of confidence in my body. But if I did decide to share them it would be for ME... not to please men or meet the male gaze expectations or whatever.
I find it strange that so many of the women commenting are caring what MEN think or automatically thinking it's about MEN when it's not... it makes me think those women care about men more than they are letting on. I am happily married and only care what my husband thinks about me (and I know he thinks I'm smoking hot and am the love of his life and that's really, truly the only opinion that matters to me in the long run when it comes to genuine real life stuff, but if a man OR a woman complimented me or said I looked good in a photo, I'd be flattered in a superficial social media kind of way- and my husband feels the same way about his own photos.)
Likewise if anyone had anything mean to say I would just ignore them because who cares? I don't see it as a gendered thing or a feminist thing (or not) at all. I just personally wouldn't like the photos so I wouldn't post them but if I did get them taken and liked them, then I would, and who cares what other people think? That is the part you have to get over if you want to have good self-esteem. Start not caring what people have to say, especially all the biddies in the comments. LOL
Although I personally wouldn't do this and have to fend off invites/"sales" on these types of photoshoots, I know a LOT of women who do get them taken and share them on social media. My husband's cousin is a photographer who does these kinds of shoots and she is also a model who photographs other models; also, we know a lot of people who are involved in the movie business because a lot of movies are filmed in our city... but it's alternative modeling or it's actors of all different body types so these "boudoir photoshoots" that she takes for people (I think burlesque photos are kind of similar but not sure) are very body-positive... most of the women are NOT skinny or "conventionally" model-like... they are curvy, plus-sized, have pink hair and tattoos, that sort of thing... although some of them are conventionally attractive... there's a wide range) and I admire them and think they look great in their photos. I think it's important to see all kinds of bodies and shapes and sizes.
As far as men doing it, well, I know a lot of male models through the same channels and also because I publish romance books and have had photoshoots of models for my covers, and yes, there are definitely men who love posing for shirtless photos and showing off their body. But also I think it's pretty universally acknowledged that the feminine form is usually more attractive to the eye (anyone's eye) than the male form so there's that too.
I consider myself to be bisexual although I've been happily married to a man for like a decade now, and when I see these photos posted I think the women are hot!!! And sometimes the men are too, lol, which is fine- we are all human and attracted to how people look but it doesn't mean it's some gross thing. I don't know when people returned to the puritan Victorian era on mumsnet, where they clasp their pearls at photos that aren't even fully naked or porn-like. (Not that I have any issue with porn actors or sex work, I'm just saying that if that's how they react to regular women who enjoy getting burlesque photos taken of themselves and feel confident about it and want to share it on their own social media pages, then I'd hate to see how they treat people who willingly, consensually take off their clothes for money. LOL.)
If any of my "friends" talked about other women as badly as some of these commenters have- saying that a woman is a trashy or has low self-esteem just for liking and sharing photos she had taken of herself- then I would unfriend them on Facebook AND in real life. I don't associate with women who treat, view and talk about other women this way (AND center it all on "what men must be thinking" instead of listening to the woman's own stated feelings and desires on the matter) and then have the hypocritical gall to call themselves "feminists". Hahahaha.)
I think it's up to each individual and if they want to take and share boudoir/burlesque photos, cool, and if they don't, cool. In real life, off Mumsnet, I have felt that everyone has had the same attitude about it that I do and it's really no big deal either way.
It's only while reading these comments that I wonder why some people are so judgmental about what other people chose to share on their own social media. It makes me think the people being mean with their comments are the insecure ones.
Anyway, OP, do it if you feel it's right for you, or don't do it if you don't, but the fact that you asked on mumsnet makes me think you don't really feel right about it. Because women who feel right about it just do it; they don't have to ask other people for their opinions and then get upset or sensitive about the answers. Someone will always judge you or not approve of what you're doing but true self-esteem comes from knowing what YOU want and doing it without regard for what others think- obviously as long as you're not hurting anyone or doing anything illegal or something crazy like that.
Best wishes no matter which way you decide. I'm glad you had a good photoshoot and are happy with the results! At least treasure those photos and be proud of them no matter what.