Hmm... no I enhanced parts of them with photoshop by mixing/resizing/erasing parts. Some lines were re-drawn but only a few. I also made brushes from the hatching shadows to be able to add some on certain parts to fit the mountains montage. Moutains brushes were made from numeric maps of the atlas so just same size as originals. For the other hand-drawn elements I used to work with a 0,1mm ink pen, scanned bigger then scaled down