Interesting concept, but the mix of 2d/3d put me off a bit. Some elements like the cone is hyper detailed, but then the characters are flat/low res?
A number of issues that I picked up on: Edge lines on the character sprites, sometimes the characters will automatically take their ice creams, but other times I have to press the button? Also at first I didn't spot the left rack, so I was serving them ice cream without cherries which they requested, but they would still take the incorrect order. Finally most of my orders were for the same 2 ice creams (or just a plain cone).
2.5/5.5 Thumbs for the theme, I don't know if serving ice cream is really that hard in real life :)