My Steam library has gotten a lot of h-games as of late, though I've tried to emigrate to other shops considering Steam is a rather loose cannon in regards to censoring or outright banning anime artistic games. However, one thing I do enjoy is their presentation of what the H-game they do offer is about. They even got a short video for the most part. In short the combination their gameplay presentation and the company's own preview photos (which is what you're showing exclusively) basically gives a good overall feel of the games.
Right now I have no way of knowing if it's a pure visual novel "click & read" (Kukkoro Days), if it's an RPG (Treasure Hunter Claire / Brave Alchemist Colette), Strategy (Eyuu Senki, Holy Road), Economy Management/Jobsim (President Yukino, Leanna's Slice of Life), Scroll RPG (Lilitales), if it features multiple playable heroines (Princess Project, Princesses Never Lose), and so on. I'll be honest with the fact that I like some gameplay elements mixed in (aka. not pure visual novels), and it's a bit tiresome to have to look up the Steam version, only to afterwards have to come back here.