So, I'm pretty sure I've finished all the current content, so I have praise, I have critiques, I have concerns, and I have suggestions!
Praise:
First and foremost, thank you for the time and effort you've put into making this. Your influences were rather blatantly on display, but that's not a bad thing. The Minimum Project is one of, if not the best, size/vore game currently being developed, and I would say it could have been as influential as Shrink High if it had come out back then. Regardless, as someone who recently picked up RPGMaker on Steam, I understand how much work it takes to make a game with this much polish, so props to you.
And while I do find all the characters charming, most of them I see too much of the characters from TMP they are inspired from, which again, isn't a bad thing, but it makes Camilla stand out all the more as my favorite character so far. She's great, and I love the dynamic she's got with Heiro.
Other than that, the vore scenes are nice, the other size/entrapment scenes are nice, and as an avid foot-hater, I accept the existence of such scenes and do not dock points because of their inclusion.
Oh! And whatever is going on with Luna, that's great stuff! Dunno how you coded the scenes to play when you start the game back up, but it was a unique experience for me at least.
Critiques:
Some of the scenes feel like they take too long to play out. Like, I think the Camilla one with Rose took close to 10 minutes to finish, and if some scenes are going to be repeatable in the future, that might be a bit much.
Speaking of which, no repeatable scenes for best girl is vexing for me. I wanted to see what the other options for Heiro's reward after helping her make friends with Rose, but needing to keep so many saves to replay events (with the limited save slots too) is annoying, and as mentioned above, the scene takes a bit of time to get through.
As with a lot of settling like this, I am not a fan of how widespread everyone seems to be with the casual disregard of human life. Like, a few of the obviously villainous/mentally unstable ones, sure, but when you have characters go from 'I treat you like a person with rights and dignity' to 'Now that you are tiny, you have no value, even if we had a relationship beforehand', it just makes everyone feel like psychopaths. But, like foot stuff, I get that this comes with the territory, and I am guilty of making some settings like that too.
Concerns:
Like I mentioned before, it's mainly just the length of scenes, especially if they are supposed to be repeatable. The pauses in the dialogue play into it, but I do think some scenes just run for too long.
Also, from that, the cursor automatically selecting an option during these long scenes has made me choose the wrong option a few times when I'm trying to speed through a scene.
Suggestions:
More Camilla scenes that are repeatable! I cannot stress how much I love that girl!
More save slots! Especially if there isn't going to be a way to rewatch old scenes. It's a pretty easy thing to do. You can make a .js file in notepad. Just copy/paste what I've put in the spoiler text below into notepad, save it as a .js, then install it like any other plugin.
DataManager.maxSavefiles = function() {
return 100;
};
Just change the "100" to whatever number of saves you want the game to have

Did I mention more scenes with Camilla? Because I'd like to see more scenes with Camilla. Or at least give her a repeatable one like Annie and Rose got!
Um... I think that's all I've got for now. The worst part of finding a gem of a game like this is not knowing how long it took for you to get it to this state, and thus, how long it'll take for the next actual version, not just some hotfixes lol
But, just go at your own pace and I hope you the best with this project!
But seriously, more Camilla. She's too adorable!