Well, this was a pleasant surprise.
The renders in the first part were quite low-grade, especially inregards to lighting and shaders, but that is already much improved in the second one.
The writing or rather the behaviour of the characters is in times a bit rough, a bit simple, but it also seems to have improved from version 1 to version 2.
There are enough save slots and the game isn't as slow as some of the other Unity games are, but it's still a very clunky, slow and simplistic UI.
Since this is a relatively straight visual novel, I can't help but wonder if this wouldn't have been better suited to Ren'py.
All in all, like I wrote, a pleasant surprise, character development (so glad the MC doesn't have to be a total douche), story (with the head over heels in love shy girl and the hard-shelled, soft-cored sexual abuse victim.
The new version of mom is also really sexy, no wonder MC doesn't want to share...
One point of criticism would be that there are not enough renders, telling the story. Way, way too often the text is about something that is happening and the characters just stand there in the same pose that is used again and again, despite what should be seen as described in the story.