I saw your recipe book linked on the game page so I was able to play the game loop. Mixing, serving customers at the desk. Overall, the game did have a good mood because of the music and graphics. I thought 'N-Ice to see you' was funny.
The game could use a little more instruction to get people started. I think it's fine with the recipe book (much better than just poking and guessing at mixes since the total number of combinations is huge. I think if you were extending the game, it would be okay to have drinks that only required a few ingredients...rather than six in each drink.