This is a very high- contrast ( black and white) outfit, whereas your coloring ( hair/face/ glasses) is low-contrast.
So if going by how it photographs, this outfit makes the clothes pop but you fade away.
That doesn’t mean you can’t wear it or love high- contrast outfits, but for me it means I get sidetracked by the palette.
Then it can be harder to evaluate other aspects, such as if trying to just see, does this blazer fit, should I wear these shoes, although that is still doable for a focused question.
I have enjoyed Imogene Lamport’s blog posts on Value Contrast and color contrast and found that helped me see why certain items worked better—my own eye was liking or disliking some outfits based on these principles but I did not have a language for why. That helped me experiment more with different combinations and get closer to ones I liked better.
Sometimes I think the aspects of contrast—top against pants, jacket over top and pants—- is more important that the color theory of cool vs warm, at least insofar as there are so many color gradations, or, that color palette can be fudged if the contrasts are good.
This does not at all mean one can’t wear any colors or contrasts or whatever one likes, but just that it impacts the appearance of the outfit and person in a photo, which can’t measure or represent our own feelings and preferences about what we are wearing.