After a final nod from Le Boat, I outlined the whole map in fine-line waterproof black ink. Then came the part I was most nervous about...painting! I spent quite some time mixing colours to achieve the right tones, and then, with trembling hands, I laid down the first few strokes of watercolour.
I had to work against the clock as when a watercolour wash dries, it leaves dark lines at the edges. For large areas like the main green, I had to make sure that the last section of paint I'd applied didn't dry out before the next section was laid down.
Many hours and much detail adding later and the map was full colour! The finishing touch was to add in the little shadows for the trees and houses, along the river bank and below each bridge.
I was unbelievably relieved to reach the end without a mishap, and even happier when the whole map had been scanned in sections and sent off for the designer at Le Boat to piece it all together and overlay the text.