I finally played through 4.5
Loved the update!
The slime queen was nice. The colours were pretty. I really like how with the stretchers and the slime queen, the horny monsters are totally chill. No malice, just kinda horny. I also like the dialogue she had with her search for colours and emotions. It's a nice change of pace from Stretchers that don't speak at all, to a telepathic Slime queen.
The miner threesome was extra hot! I know your main focus was futa-on-male so I didn't expect you to have two futas kissing. Once you establish that they're bi, you get the feeling that when the mc was getting spitroasted, Nell was trying to use the MC to fuck Jen. Like they use the MC as toy to get off their partner, and that's pretty hot in a way. And wholesome.
The only way that scene gets better is if Nell pushes your head onto Jenn's cock to make you deep throat her, turning you into a toy at that point, or if they forced a DP onto you. Yeah it doesn't make literal sense and probably isn't possible, but I'm too horny to care!
Fantastic update! Enjoy the vacation!