I completely missed the cup being needed to serve the potion ^^" I did read the tutorial, even twice over since I was a bit confused, but i don't think the cup part is stated in there (unless i just missed it)
I'll give the game another try later and update my review with this information <3
For the visuals, I like the overall style, maybe you could've maybe added some small idle animations to the customers? (even just their still sprite slowly bobbing up and down could do the trick)
For the audio, I see. Hopefully you can get the BGM going on your next jam project! <3
As for seriousness, that will be re-rated once i re-play the game!
Thanks for letting me know what i missed! :)