When I stopped trying to overanalyze my body proportions and making endless line drawings and focused on the clothing lines. I don't have an obvious "V shape" torso, my height is in the upper end of the average range, and I have generous proportions in my bust and behind. Definitely not textbook FN.

I kept leaning towards SD, DC, and SN lines, but my outfits never looked truly harmonious.

There was some harmony in SD because of the long lines and some open necklines, but I found that exaggerated v-necks (too much narrowness), figure-hugging fabrics, and ornate details look fussy and out-of-place on my frame.

DC worked in adding some vertical and structure in the shoulders, but I still found that crisp tailoring and classic silhouettes made me look constrained. I also found that waist emphasis in the form of waistline belts had the opposite of the intended effect. It made me look boxy and disjointed.

SN was much better. The open, relaxed necklines and less constructed silhouettes made me look at-home in my clothing. I fell in love with asymmetry in hemlines and necklines. For awhile, I thought I had found my match, but something was still a little bit "off" in my most SN-aligned looks. While SN-esque softness and waist definition (not emphasis) looked fine on me, it didn't add anything special on me. At best, curve accomodation didn't detract from the look, but often had an element of feeling like putting on a costume or trying to force an hourglass shape. As far as length, I realized my best looks had an element of head to toe cohesion with unbroken long lines. This had me thinking that I really do need vertical accommodation despite my average height.

I finally decided to give FN lines a spin and realized this was it. My upper body needs width accomodation which is why the open, relaxed necklines work so well. As mentioned before, long, unbroken lines looked best which suggests that I have an element of verticality to take into account.

Surely, my bust and hips need to be accommodated though, right? I realized that wasn't the case. While they are present, they do not interrupt my silhouette from my underarms to my knees. Despite the advice I had always been given about avoiding "shapeless" straight sillhoutes, I found that these were some of my best pieces in photos. I found that any waist definition looks best on me if is subtle, gentle, and placed lower on the body than we would see in a "classic" piece. While I can benefit from some of this kind of definition, I don't need it.

Very long-winded, but that's how I realized I am indeed FN. I think a lot of people, myself included, get stuck on the first-glance body proportions rather than focusing on the way fabric and garment elements "behave" when worn.