Story seems good. Of course it'd be better if there was an actual end. I'd say the scientist needs to be younger. On assumption I'd say people aren't old old enough to sympathize with white hair. Though it is an interesting point that creates intrigue into what happened with his wife. Art seems okay. It could be better. Cybele has one picture in which she has three arms, so that should've been tossed. I'd recommend not publishing an anime and a realistic artwork visual novel. Pick one and don't look at the other. It forces an acknowledgment that there's another artwork available when going through it. On the other actors I'd like to see something else rather then a baseline. It's not finished.

Anyway, the visual novel seems good. Good in a way of development. I'd recommend a release for full story images and a patreon of extra content with a teaser in the visual novel. It'd be nice if the whole thing was finished, but this is on the version I currently experienced.