i have two suggestions, though idk if they where suggested
1, alt scenes for some enemys, mainly the super common ones and ones with niche scenarios. for example with the four enemys in game, the wolf should probably some variantion since shes in every room, while the rat is alot less common and probably doesnt need a second animation, though a cv scene with them would be fun, and im alittle bias since harpys are some of my favorite speices, but a stanard vore game over for them would be nice.
2, permavore mode, or just a hard mode with 1 life, could be as simple as that, but having cgs or art work for loosing in this mode could be fun,
Alt scenes are sort of planned, but they're mainly intended for bosses going forward, with maybe like a few exceptions for regular field enemies.
1 life mode is a good idea, though I only have a single save slot right now so I might need to add in others just so that you don't lose any and all progress across the board, or maybe just a second button for a no death run.