What is better with Paradise Found, in your opinion?
I don't think you can do much. Both are different games and genres. The plot itself doesn't give me will to play (just my opinion), if it was a school I would think twice, but still a different environment. The art (yes I know it's also real porn, just not having a better word) also doesn't appeal much to me.
I'll be blunt, I discovered Paradise Found due incest, but the environment was nice, the actresses chosen fit the game, and has a nice corruption nuance. The only bad thing imo is not having pregnancy (or at least a focus on the risk itself to get pregnant), along with the ending being a bit abrupt. But as I mentioned, the corruption increase was well done, and while I like games with incest, many tend to fail with that kind of content, they can't focus on the confliction of the taboo. Being family members for the sake of being family members isn't necessarily a good thing, and it needs something to make the player hooked into the game, without simply thinking "yeah this wouldn't ever happen in real life", and this game delivers that pretty well, with some minor exceptions of course.
Also, I'm sad that I can't get used to Java engine at all, since I sometimes try to mod a game here and there for my taste. But I always hit the wall with Java, unlike Ren'py and html.
I have nothing against the monastery, and it seems a polished game for those who like it, but it just doesn't grab my attention. Or it is theme, or the "art", or the "environment", I don't know. I don't think it is a bad game by any means, just doesn't appeal me. Is like someone liking League of Legends, while other person likes Counter Strike. If there are better scenes included, then I would recommend you adding other previews, because at the time I've played I didn't find them anything special, but again, just my personal opinion. If I grab time I may try again to see if the new content pleases my tastes, but if it goes along what's on the OP then I probably won't.
Looking forward for your next game though, even if Monastery isn't my cup of tea, I loved Paradise Found, and that's an accomplishment taking into account that I hate Java.