I like this game a lot! The art is really amazing, the story is good and funny, the gameplay is engaging! I honestly thing that with a bit more work, you can make this into a full game!
My main problem is that sometimes the towers couldnt be placed down and by the time you find the proper location, your train is already in the next region. It would be nice if you can pause it when building. Also I think some more mechanics that make you really think ahead would be great in this type of game.