UP2037603: I'm impressed that you got a working mobile background animation working with the vehicles and I really liked the system of two currencies working together. The sound and music are both very well suited for the game and the graphical style with different biscuits drove me to complete the game fully. Your UI is both aesthetically pleasing and easy to use.
I did notice a small bug, or perhaps design, that the automated sellers would take away 1 crumb no matter how many they were actually trying to sell so you didn't really need to manage your crumbs.