Love it Sheep.
Finally got around to finishing this, sorry it took so long. But in my defense, there's a LOT. Which is great, but it does take a while to get through.
I ended up throwing out a lot of what I was going to say, because you actually ended up implementing it as the game goes on. Early on, it's largely a bunch of silo'd encounters that all end in game overs, but further in you start to have some NOT be hard game overs, and start to mix them into each other a bit better, which is exactly what I was going to suggest. I especially appreciate the various callbacks to what's happened so far by the time we get to the Monster Hunter guild quests, especially the werewolf one. Very nice.
I didn't enjoy EVERY setup, such is the nature of kink and personal taste. But there's a LOT of fun stuff here. Personal favorites would be the Griffon knight (though I'm not as much into the scent aspect as just the "abuse" /manipulation/abuse of power etc), the lizard shaman fella while guarding (VERY nice), and I think most of all the traveling hypnotist.
The whole monster guild thing is a really nice bringing together of everything, and a good actual capping off the proper story the thing has. My only real complaint there is that I wanted Lenti and Oliver to get into more trouble together, potentially even just get blindsided by the griffon again. Maybe betray each other TO him. But a very fun little group after all.
And a very impressive piece of work overall! I think the only downside is that BECAUSE it's text-only, and Twine, a lot of people may bounce off it before they get hooked in, which is sad because there's a LOT here to enjoy. Not that you have to, but if you wanted to, I think dumping this into something like Renpy (to give easier control on some things), making some MINOR tweaks and sprinkling in a few visuals (Not full scene stuff, just a few bits here and there to get the imagination going) would let you absolutely blow people out of the water with this, even more than you are already. Potentially even make some decent money, if you were interested in going that route. Again though, just thoughts.
I'm glad you finished this, and that *I* finally got around to going through it all. A really fun little adventure.