Really love the artwork and the story, and especially like the chris femdom path but I feel it's a little rushed and railroads you too much when you start it. Also the chastity cage, don't get me wrong, love it and denial but even ignoring where the hell she pulled it from, it's sci fi, its the future you're on a space ship. There's so many more interesting ways to achieve the goals of teasing/denial/punishment etc than a plastic cage you can buy today.
Ideally I'd like to see the femdom path branch out two ways, one where it's more of a loving femdom relationship based on obedience, but another rebellion path based on punishment, and locking up little Mr Smith, or whatever your name in game is right off the bat kind of prevents more developments. When she says she owns *her* dick, and not to touch it or think about using it you should have the option to break her rules. Everyone could get an "antibiotic nanite" shot upon arriving at the station, and you could later find that the nanites also record vital stats, maybe even perform other functions and chris got administrator/experimental access to their functions. So she could tell if you masturbated, had an orgasm, had sex, even had an erection and punish or reward you accordingly. Hell if you wanted to add more advanced features the nanites could be triggered to block/control erectile function, arousal, orgasm, other bodily functions, in ways to punish/humiliate you, or even deliver pain. Imagine an awkward noticable erection when you're staring at your sisters tits, being unable to get it up in the annie scene (or maybe only getting half size), prematurely ejaculating in a makeout scene, being too horny to sleep and forced to masturbate a different way, wetting yourself before, during or after the kickboxing match. There's a lot more room for humiliation punishment and bartering that could really spice up the femdom path. Then if you still wanted to go to physical chastity I'd update the device and make it a little more high tech. Hell this is the future right, you could even as a final extreme punishment dabble with temporary reversible castration, call it "testicular stasis" a punishment for sexual criminals on remote outposts until they can be tried/rehabilitated. Imagine your balls living, sepeareted from your body in some high tech jar on her night stand. Can you earn, win, or force her to give them back to you, or are you happier you no longer have to worry about them.
Honestly that might be too much work for the femdom path which I understand is just one part of the game, but you could use these nanites in more of a harem/control path too where the MC got to observe or some limited control over the other girls and could influence them.