It is quite Amazing creation.Hand draw Map with the pen and the diffract type of Inks,Its a good Idea,I have read your Ides and the things that are really informative and good to make MAP on the paper,Different type of nibs,inks and the pens are required to make the MAP.For the colour and the surface of the mountain and the roads will be highlighted with these Ink.Good job.Got such a god Ideas from this.