Copycat.
Just kidding!
It's not easy to give critique on facial feminization without good shots. Ideally, a frontal, a 45', and a profile are good to have - the profile being the important picture of the face.
That said, in your "humm" and "wut" pictures, you pass just fine. "Humm" is better; I would say "wut" is closer to androgynous, though I would still say female. Your stance in "wut" isn't the greatest - that's a large part of why I say androgynous. Your elbows are out and your palms are facing behind you... a more feminine stance would be to have elbows being inward, and palms facing more forward or sideways. You seem to have a very casual, relaxed, almost slouched look in that pic... which is more of a guy thing.
"Humm" is hard to tell. I mean, the colours are off. But I have nothing to say but good job

That's a good pic... even if it's a wee bit small.
As for your "stache" pic, though, you look more androgynous leaning towards male. I believe the eyebrows are to blame. Perhaps, again, the pose selection wasn't the best.
FFS-wise, though? The only things I can see that you need to do are maybe arch your eyebrows if you can, and shift into a different posture for everyday use, unless those pictures are the exceptions. A spicier wardrobe wouldn't hurt either!
If you post a 45' and/or a profile, I could feel more confident about saying you don't need FFS, but based on those three, you don't need it. Of course, if you have a lot of money, you could probably go for it anyway... you might not pass more often, but you might like how you look more (even if you look fine to everyone else, myself included). You would be doing it almost purely for yourself.
Oh, and the jaw is nothing to worry about.
... That's about as mean as I can be. I hope you don't mind that I spoke my thoughts as they came. I also hope that something I said was useful... or helpful in any way. You should come and be mean to me on my FFS thread

Best wishes!