There's a lot of features for a game made in only 10 days. The artstyle is really something but I thing you could have done more to add more personalities to the curstomers and that way you could even develop customers with traits like some customers that don't have an issue with you messing the order, customers that are less patient than others, and stuff. Maybe even add a tip mechanic so depending on how fast you serve them there's a higher chance on being tipped. The game can become something more robust, I can see it. It only needs some more polish like it could be nice that you could carry around your recipe book, have more knowledge at any time of your inventory and even maybe an upgrade relate to purchasing ingredients. Maybe a scubscription mechanic that can modify the way you buy ingredients. Something like instead of buying things instantly you have to buy them before you open, with this you can even work on a dishes of the day mechanic, thus you have to work with your current inventory but if you buy a special subscription you can have the option to buy things on the moment if you need them, with this you can even work more on a dishes of the day mechanic modifying them on the go. This way you can reward good planning and give a chance to change strats. You got something good going on, hope you work on it!