Firstly, let me state that I do not like the way roads look. They should be more natural.
There are two bugs
1. There is no path finding. Roads will connect rival cities passing through anything in their path.
2. The enemy will still create a road to a previously conquered city, even when it is no longer under their control.
PS. I love Elemental's artwork. The style has unlimited potential. I am really looking forward to what this game will eventually become.