Great game! I love the concept and the gameplay is pretty fun. I wish there was a timer to know when an order is going to expire and what each station contributes to the network. It would be nice to know which trains are available as I kept spam-clicking on stations trying to send a train over there. I also encountered a bug where I couldn't exit out of the buy menu and had to refresh the game ( I don't remember how to recreate it so sorry about that). And my game wasn't as bright and colorful as your screenshots are. I don't know if that's a problem on my end or what, but I still enjoyed the artwork.
Overall it's a cute and fun game with some strategies you can play around with. Great job you guys!