I love when games have some funny text/dialogues/events, and you really nailed it. The character animations, the way they look, their reactions after good or bad potions... amazing work!
the idea is quite creative and well executed, the potions are super cool and I loved seeing their effects. My only tiny feedback was that it could be more intuitive to learn how to interact with the customer, I tried handing them the potion directly for a while lol. But once that was done it was smooth, fun sailing :)