Initially I was skeptical, since the game uses Koikatsu models, and the way that they're ported and rendered in Unity makes the face and (most importantly) the penis blur together sometimes that it looks like an untextured, blobby mess.
But I gotta say, you
do try your hardest at the presentation and the animation to avoid making it become another Renpy slop fest, and a lot of things show potential such as the aunt's basic design (especially in pajamas

) and the layout of the house.
Don't be ashamed of
how you made the models, I've seen plenty of Koikatsu animations that most can't even recognize that they were originally made with the software with only a few adjustments to the rendering and a little more detail to the model itself, which I believe the same can be done in-engine within Unity... with some guidance, of course.
Like, I'm not saying the current models are bad or anything, but a couple edits to them could possibly improve how they looks under the light and make them closer to your vision than to look oversaturated and without much depth.
But the worse offender of is the dad, I get that his bum ass isn't supposed to be appealing, yet...
View attachment 4756995
- This mofo is barely the same height as his wife
- His lack of facial features make him look too young
- He dresses like a kid
- Due to Koikatsu sliders, his side face pretty much folds into itself and looks as flat as a cinder block
- His yee-yee ass haircut make him look like a bitch
He stinks
I do feel like even for a cuck, he deserves a better design
since you do spent the prologue looking at his face.