The very nature of being trans is delusion. You're essentially shorting our your logic to live a lifestyle that is against your very birth nature. I've seen a certain girl on youtube who says, "No one can tell I am trans". I think it's hilarious, because she doesn't look that different from me in the face... But she's 5 inches taller, has huge hands, and used to have a very masculine body. Her and I are spawned from the "drag queen" sect of transsexuals. We know how to make something have the illusion of "female". But opinions... If we ask anyone but our cheerleaders and men who are horny for us(and there's a lot of them)...they'd call us "pretty ->-bleeped-<-s in drag". But hey, at least I am petite. Giving me a huge advantage to most trans.
If you want an honest opinion, ask someone outside the trans community. Normal cispeople have an eye for this stuff like you wouldn't believe. Especially gay/straight/bi men.
I just ask my friend/dragmom who is obsessed with trannies and constantly critiques their faces/bodies/etc. Him and I basically concluded being trans is essentially a "full time draq queen" lifestyle...thus makeup is more important and some can't even be saved by ffs. I mean due to bone structure and various other features, no transsexual is gonna be "fool proof". They will always some male characteristics the public will be able to point out and say, "Thats a man". It's a fact of life.
I'll trust the opinion of someone outside of the community rather than in it. I've shown several of my male friends(who don't know i am a ts) what they think of a certain transgirl and they often will compare to a GG. Men are the ones who pay my salary and buy me dinner. Because I admit, I am very hypercritical over passing. I think sometimes I look too deep into it, when really I don't care about other peoples faces or anything.
I'm a "part time" gender illusionist. Part of the reason that I preach makeup, proper hair, and clothes being so important is that being this 24/7 for most of you is essentially a full time "illusion". Therefore, getting people to think you're female with proper feminine markers is that a lot of people don't think past the nose on their face and you don't want them reacting awkward.
As for myself, I will say that I need minor ffs(Nose, dental work, and chin/jaw). I do have a "mannish" facial structure, but so several of the porn stars and gender illusionists I've met. But I've accepted it, which is one of the hardest things to do when being trans. There are very few girls who will ever pass as GG... Unless you start hormones before puberty and even then, genetics and prettiness play in fact. Therefore, you better foster an illusion because that will be more important overall than any amount of girl clothes and hormones.