Really fun update and if you're open to suggestions and constructive criticism I hope I can provide both. (warning for those that haven played, will contain spoilers)
Farm- I like the farm so far, the horse creature was interesting and liked the animation. But I wish there was something that follows if you don't go into the "shelf" hole. Maybe a boss battle or something. Also I really hope it is a longer portion later. Maybe some back and forth between buildings to gather keys till the gate gets opened. I thought an interesting creature would be a tentacle infested pigs that roamed around.
Swamp- I liked the swamp though the plant people are a real pain to get by. I have an idea for the plant men that I will explain a bit later under "ambushes." I thought a interesting enemy would be a frog that lays eggs in Syahata that would have a unique birth animation.
Ambushes - So far I love these (the hole spider and tree tentacles are amazing) and I wish there were more. In a previous comment a while back I suggested window zombies at the school that would pull Syahata into a gangbang in a class room. Also think an interesting one would be the large zombie in the gym. I always thought it would be cool if you had to crawl by the window when you passed by the first time you see him. Maybe it would pull you into the fight earlier. For the plant men in the swamp I think you could just out their silhouette in the background where she has to sneak by otherwise Syahata gets pulled into a plant man double penetration.
Ideas - I am certain you have plans and I am excited to see what you have for the future. But here are some small suggestions that I feel would be fun. 1) If Syahata returns to the gym she can do a consensual sex animation with the giant where she is riding him. 2) A boss fight in the sewer with a giant brood mother spider. It would have a red weak pot and it's main attack would to eventually lay a large egg that becomes a full grown spider. The boss room would have the walls lined with women laying eggs. 3) The under used animation angle of Syahata with the spider. Some reason that is my favorite and would love to see her with a regular zombie in that pose. 4) A slug enemy. A slow semi-transparent enemy where you can see it's larvae/eggs inside it that you can see being pushed into Syahata when it cums. 5) Syahata's arousal. I feel like her watching or at least being near the background women being violated should slowly increase her arousal bar. 6) Downed Syahata. I feel like if you are down long enough or hang out in the post sex pose for too long another creature can have sex with her.
Anyways I could talk about ideas for days, but I love the game. Keep up the good work!