While this is your 'average' RPG maker game to be certain. This game was clearly made with a lot of love. Music, design, effort, everything is clearly well thought out.
My 1 and only comment/ever so slight complaint. The pred system. For some reason you can always 'regurgitate' even in a new fight. And of course that seems rather...pointless. The action itself also seems rather pointless in general. Unless if and when your prey escapes you take dmg and a status effect. Instead of just a status effect should you clearly be close to losing the 'fight'.
Speaking of fighting within stomachs. I'm not sure if it's just a glitch or design. But you don't gain TP while trying to keep your prey inside. By which I mean you don't gain TP from 'pred actions'. (Unlike every other pred in existence in this game?) This makes the predatory battle system feel like a slowly losing battle. Or leave you with the only alternative which is simply devouring your enemy while they are at low health.
That all being said. This is clearly not a fully finished game yet (Chapter 1 after all). So clearly there is room for improvements or simply touches that haven't been added quite yet. I certainly hope the pred system is expanded upon. Such as gaining buffs (like a certain deboss) or extra XP from how many prey you ate. It would also be nice if Lana could gain some 'padding' as they keep talking about it. (Kinda like a weight system another RPG maker game is doing.)