Viability: Very clear and I was able to figure out what I was supposed to do all the way to the end without a tutorial or hand-holding. Nice!
Presentation: Really solid use of color and typography to tell your story the inventory was very clear and understandable also.
Theme: Really good theme, I think your writing was really well done and added a lot to the engagement of the story, and also made it easy to follow what I was doing.
Engagement: Really engaging from the beginning by setting up an obvious goal: create a potion. The feeling of crossing things off of a recipe was very satisfying and made me want to keep playing.