It's a nice start with your track layout and industries,... but is the whole landscape meant to be dead flat?
Think about adding some highs and lows to the landscape, maybe a river with bridges, a cutting or two, tree foliage, mix up the grass color textures and add some fencing to bring it to life.
To help, check Google images surrounding your intended route and use various landmarks to add some reality.
Good luck,
Roy
