I really like the concept of the game and have some ideas that might improve it. In my opinion, the drawing order seems off in the area where new seeds are spawned. If this isn't intentional, it might be worth taking a look at the z-index settings in the properties of your corresponding nodes. Also, displaying the remaining time to fulfill orders on each truck could help players prioritize which crops to harvest based on urgency. If you're interested in further developing the game, introducing a currency system and unlockable map tiles could provide a sense of progression and keep players engaged. To balance this new feature, you could consider increasing the difficulty, such as by adding more delivery trucks or tightening order deadlines. Overall, this is a cute and charming prototype that's built on a good idea. :)