It's already too late to change anything with Karryn's prison, they might add a few extra jobs when they feel like it, but the focus was in the wrong place since the start.
I feel like devs should've expanded combat hentai stuff more, you know the main meat of the game, the main grind. It would be nice if there was grappling, for example, a separate new scene when Karryn gets knocked down on her ass or runs out of stamina, kind of the like high leg kick grab that enemies use to catch Karryn and it has kissing difference too! Maybe even unlock a new set of actions with a deeper "flashing" mechanic when she is horny or tainted by aphrodisiac, she would voluntarily take off clothes or show off body parts rather than 1 CG we get now. (and nerf the handjob skill so it wouldn't undress Karryn instantly).
The jobs use the combat system, but it's limited in such a way that it doesn't expand the interactions at all, rather you're stuck with a smaller amount of hentai actions than you would in normal battle, and when you lose, you can't do anything at all, you're stuck in one pose until it's over. Why make a job feel like a job? I'm fapping here bro...
I guess it's a note to keep for their future projects.