One of the best games i've played. Graphics are ok, and the overall feel is really good and chill.
The improvements i would do:
-In the menu, every screen is different. Would do all of them the same way so it feels more like 1 menu ( the one i like the most is the settings one with the "Old TV" vibe. Would do all of them similar to that one) :P
-The tapes are really difficult to distinguish sometimes, would put color on them or something to make each of them more unique
-Sometimes i didnt see a customer, doing the sound they do more listenable, or an arrow when they are out of screen that shows there is a costumer there would be fine in my opinion.
Congrats on the game, it is really good for being made in only a week!