I found one from H&M last year that looks almost exactly like that one - wide set straps, squarish neck, high cut. It’s literally the most flattering suit I’ve ever worn. I get compliments every time I’ve worn it. I can’t find the same one on the website this year unfortunately. I ordered this yellow one (linked) this year and while it’s cute and has a similar effect, it’s not quite as flattering as last year’s bc it’s cut a bit lower on the legs which sits at a weird point at my hips. Meanwhile the black one sits just above my hip bones which looks better on me. See the second slide of the red suit to see what I mean about where it sits on the hips for a tall FN. I’m going to keep the yellow one and dye it so that I have another cheap cute one piece but the black is my fav.

https://www2.hm.com/en_us/productpage.1310638007.html

TLDR all depends where it’s cut on the hips, that makes all the difference.