I'm pretty into these games nowadays and I have to say your interactive potions were some of the best I have played through so far. Mixing a not very hard minigame with some sweet transitional animations and choices was pretty refreshing and nice. The story is compelling and the creepy visuals are well done. While having options and branches can be fun, I feel compelled to warn you not to make so big a scope that we never get to see the end :3
cheers!