I think this is looking really great. Really nice dark and brooding feel about the map. Don't worry about ensuring that features on a map are scaled to size - for a map to be useable, features like towns, streets and rivers are often scaled up so that the reader can see them and the map can be useful. Ancient mappers did this and so do modern street atlases, so it's a pretty well recognised convention.

If you've done this using a mouse and not a tablet, then I think it makes the result twice as good.

Cheers

Ravs