I'm echoing Flo's thoughts. It feels like the inspiration point was these type of men's worker trousers which even in their original form aren't cut for aesthetic purposes so I suppose some sort of needing to embrace their lack of flattering character is part of the design intent.
I've added an extra image from Alaïa's last show where they have made it into a more flattering female silhouette. I'm not sure heels will save it, I'd want some breathing space around the neck just to break up the linearity of it all and direct the eye elsewhere but I don't know if a v-neck will alter the proportions of it enough for it to suddenly feel flattering.
Also, don't know if it's the image or your phone but they look really intensely black which would limit colours that work with it as you'd need something with similar intensity without it being too harsh a contrast? If that's the same in RL it's like an additional handicap in styling them. Have you tried anything super long with them, like a camisole with a long shirt worn open, maybe it would help break up the visual weight of the trousers?
As to my trouser woes, I found another pair of the JW Anderson's which I could try on at my leisure but the belt was missing so I'm not that much wiser. Definitely liked them more but still uhming and ahing and pretty much watching if any of the online ones drop further in price. Instead, I did finally find my perfect long turtleneck in Antwerp, just in an almost burgundy (instead of black) from Jil Sander and a really interesting Margiela knit top with intricate folds, almost like origami (it has a paper like quality and an unusual stiffness, both secondhand finds.
Also, flagging up, watched the first episode of the Cristobal Balenciaga series on Disney+, it's way better than I anticipated (also multilingual, no English so far which is surprising, even some Basque), it's really absorbing and I really like the actor playing him, he avoids being the tortured creative genius but really portrays the vulnerability so well. Also visually a delight to watch. Only six episodes so I'm pacing myself.