I liked the design of the cards. I had to refer back to the comments here to figure out that you were supposed to push the table to the customer. Seems like it could be more elegant to have a button or slot like in Papers Please to bring the next customer.
I think there could be more verticality in how you arrange the cards to. I'm not sure how the game is scored but trying to mimic the image would go further if you have that dimension to work with. Nice job!