Ugh I hate voice training so much but after yesterday's breakdown while trying and getting two "voice analysis" results showing "0% female, 92% male" I decided to watch some videos I've seen recommended, and honestly YuukoEX was the one that helped me the most because I feel like I can try to emulate her voice better than others I've heard.
After spending yesterday on exercises and trying to figure out various muscles around my throat, I managed this: 
It's not much, but it's an improvement!
Also, I'm trying eye liner today! It's a little smudged in one or two spots, but it makes a HUGE difference in my own perception! I even took a face selfie! On purpose!! (for myself I am not nearly confident enough to post lol)
So if you need the reminder, I guess here it is!
I've not had professional voice training or anyone else that I trust to evaluate my progress. I can only say that the content of its report seems to accurately reflect changes that I induce. The included examples also appear to reflect its accuracy. Granted, that's all still terribly subjective.
I used it as a sort of video game whereby I'd shoot for the "highest score" (pitch and resonance) just to explore that sensation.. not with the intention of using those parameters for casual speech. My thought was that if I pushed the pendulum past the point where I wanted it to be in practice then I would land in the correct parameters during casual use.
I (think I) found that pushing to maximum pitch and resonance teaches one to change their oral and laryngeal posture to more accurately perform feminine speech.. not just pitch and resonance, but also accent. That's where your 50:50 comes in. I believe 50:50 can easily be femme with the proper accent.
I think it also plumb wrecked my hillbilly accent.. and I'm fine with that.