Orbital rims are upper and partly lateral edges of orbital cavity, and are the single most important gender marker on ones face. Many people even out of those who are researching this topics for their own future FFS, don't understand this, and mostly think about brow bossing, square chin, wide jaw as the features which have the most masculine effect. While some ciswomen also have more or less prominent brow bossing, it very rarely occurs in combination with masculine shaped orbital rims. This is why some brow bossing on women doesn't make their face appear masculine, and they don't get misgendered because of having some brow bossing. While this is a case for cis-women, with trans women it's whole different story, as masculine orbital rims almost always go together with even the slightest brow bossing. And even in case where a person doesn't have any brow bossing, she might have masculine shape of orbital rims. The direct result of orbital rims shape is eye expression, which is either masculine or feminine or androgynous (androgynous is often the case after FFS). And eye expression in the end is what makes you being read as a man or a woman. It makes a slightly less difference for a trans women with prominently deep-set eyes, than for everyone else though. One thing about reshaping the orbital rims to a feminine shape is, it can't always be shaped efficiently enough, and thus resulting in poorer FFS result. This is usually the case where people only see brow bossing as a problem and choose to have a surgery with a doctor unable to perform a proper "type3" reconstruction, and the lower forehead in overall isn't set back far enough, to where would a surgeon be able to do a proper feminization of orbital rims. In other words, you can't fix one without the other. Where a surgeons (mostly those who only perform a type 1 shaving) can't make a satisfying feminization effect with remodeling of orbital rims, they in most cases go for a different feminizing approach, which result in eyebrow place too high, in unnatural position (natural position for eyebrows is determined by orbital rims), which also results in unnatural look. But it is not evident for everyone, as most people don't really know what to look for. Most of the patients are quite pleased with overdone brow lift, as their apperance and eye expression shifted towards feminine. I guess this is what is worth researching for those who want a natural looking FFS result. By focusing solely on this, a problem with choosing the right surgeon becomes much less of the problem, as there aren't even many well-known FFS surgeons who understand the importance and full feminizing effect of this.
Small chin is a plus. A chin which is set too back is a minus, not that much as a masculine/feminine factor , but as a overall facial balance. Facial balance/facial harmony result in an attractive face, and otherwise. It is not essential, but you would definitely benefit with this. Every FFS surgeon would mention this to you. I don't think an implant would be the best choice as your chin is already "pointy", so sliding genioplasty would be the better choice to bring your chin more forward, and improve projection. And Facial team don't do chin implants, (they hate chin implants!) so they would only offer sliding genioplasty.
I agree with other, you should be at least around a year on HRT first. But it is important to understand that HRT won't do much if anything for your forehead-orbital area and nose. I think you would see positive effects with fuller cheeks and smoother overall appearance. And then see how things are going with "passing" or should I say blending-in, and then seek for what and how much FFS to get done if any.
