Check Caribdis' first game, it's Honey Select 1 (I might be wrong, but it doesn't look like HS2) and it looks good. You can tell it's a little flat, but models are nice, writing is ok and there's actual story thought out from start to finish. It's solid. Kinda looks better than most HS2 games you see recently. Also Harem Hotel - HS1, but it's still solid.
Now HS2 won't make your games look great and there's a lot of... I dunno how to call it... amateurism (?) in creating HS2 games. The tool is full of features that can make it look like Eternum, but most never bother to learn them. Why most HS2-based games look so scuffed is... *drumroll* ... shitty lighting. They just use whatever the map came with, there's shadows across character faces, it's hard to see, you don't know what to focus on in the picture, etc. Where Caribdis' work shines is careful attention to "cinema/movie/photography" experience. That's why he's using maps you've seen 20 times already, but they just look better because he's using custom lighting. It's a talent combined with attention to detail.