Got to admit, I like the color. I like the idea of making an old map, that has the appearance of a very well preserved image. The only wear that this map would have is on its outside edges.
Also, the lat. and long. lines are unique to this map over the other CC maps. I like the idea very much. I would NOT worry about it not being from the period of the subject. The map could very well have been made 200 years ago, about an earlier period. This IS a common occurrence in cartography. Just as this project is actually being made in 2009 AD. of a subject hundreds of years in the past.
Also, I was farting around with some transfer modes, and found that there is a blueish "ghost" text going on beneath this map. Now I know that in times of long ago, they reused paper, and canvas, all the time. Is this a product of you using a texture from an old map or something ? or did you actually add it for some kind of effect. I will show an example of the ghost text by pumping up the settings to make the ghost more visible.
- Click image to enlarge.

- Click image to enlarge.
