Never knew about this one, gave this one a try, liked it quite a bit. Immediately downloaded Prison 1... I'll be honest, if i've played original prison, i wouldn't even bother with this one, so bad it felt after sequel. So imma just comment on how much it improved to give you feedback:
1. Faces. I was never fan of DAZ model games, these models are almost always look the same: ugly, generic, combined with out of place and exaggerated mimic. Whenever someone attempts animation with these models it looks choppy and ridiculous (this one quite relevant for this one as well, and i really think you should focus on more static frames, cause they look way better than animations). But leaving my preferences aside, I don't think i EVER seen such ugly faces like some from original Prison. So yeah, faces look quite nice in sequel and definitely waaay better than they were before.
2. General settings. Casual urban surrounds imo work much better than prison (idk why you called this one prison 2 honestly). Having sexy time in some normal rooms like bedroom or bathroom do look much more pleasing than those in prison cell or goddamn GARBAGE DUMP (I was completely buffled when I saw those scenes in garbage dump with one of ugliest chicks ever to boot, what was going through your head when you did those, I have no idea. I don't think ANYONE can find those hot). Mansion aestetics with maids are very common for these femdom/sissy games and for a good reason, its eye appealing and sexy. Not to mention that maid fetish is big thing on its own. So good improvements on this side too.
3. Content and progression. Abundance of wanton violence that is thrown at you right from the get go in prison 1 leaved me with "meh" impression. First of all its not my cup of tea, idk may be someone who's really in torture and trampling likes it more, but that aside progression part is even worse. Usually in femdom games you start to get dominated in more mild ways and then gradually it grows till at the end you get heaviest aspects of BDSM. But how much farther can it progress when chicks beat the crap from you at the start? In sequel though i enjoyed almost all progressions, you don't get brutal scenes from the start, and it feels much more fluid (futa chick obviously isn't very fluid, but lets just ignore that one).
4. Plot. I just coudn't take plot in Prison 1 seriously, it was so silly. I'm not trying to offend here, just commenting on my impressions, mind you. It had very disconnected and contrived feel about it: random treasure found, secret base/prison with military chicks in it and those cheep action movie attempts with shooting and escape... Lets just say that casual and laid back plot you have in sequel feels much more organic. Even some over the top things like magical amulet or futa don't look so out of place cause of general light attitude compared what you had in prison.
5. UI and stats. I reached few ends in Prison 1 but even then i couldn't get some of stats you used... Mental damage, physical body damage? Where do you see those? Can you really lose cause of them? Very superficial and annoying hunger/thirst, you just went collecting some ore and bam, you've died from thirst. I mean cmon... Good job on refraining from those in sequel. Money balancing could use some rework though, money really don't seem significant as they are now. You can easily get as much as you need and see all scenes, so far its only function is increasing numbers of clicks you have to do.
So yeah, you improved in leaps and bounds comparing to previous effort, good job on that!