This game feels like a mix of Teraurge and Anthophobia, but in a more strict VN format with more or less just a single main branch and all the other ones that result in game overs (most are sex scenes, although there are some non-game ending sex scenes too).
The key difference is that Greenhouse has an exclusively (furry) male protagonist (Teraurge has both male and female, Anthophobia has female), and a very masculine one at once. Combine that with the poor art and you get a completely unattractive protagonist which results in unattractive scenes. His penis exacerbates this problem by being, well, ugly; it looks like a vagina when soft, too. Weird.
Again, this game draws a lot from some other previous titles, both in the context and writing, which is nice since it's quite rare for a game like this to show up. Sadly, Greenhouse just isn't good.
The key difference is that Greenhouse has an exclusively (furry) male protagonist (Teraurge has both male and female, Anthophobia has female), and a very masculine one at once. Combine that with the poor art and you get a completely unattractive protagonist which results in unattractive scenes. His penis exacerbates this problem by being, well, ugly; it looks like a vagina when soft, too. Weird.
Again, this game draws a lot from some other previous titles, both in the context and writing, which is nice since it's quite rare for a game like this to show up. Sadly, Greenhouse just isn't good.