Bardoux, I don't see how it's even possible that anyone could read you as not being female. You have features that cis women would envy... perfect round forehead, scoop nose, perfect-sized chin, feminine lips, eyes that absolutely sparkle, great hair. How the hell you can possibly think that you look even remotely close to "in-between" is beyond me. Maybe there's some mannerisms that you need to work on or something. I don't know. But from an appearance perspective, you not only pass, I'd be completely 100% shocked if someone told me that you were trans.
The only even remotely male thing on you is the adam's apple.