Fiddly graphics task

This is a repetition task which requires basic graphic manipulation skills using Fireworks or equivalent. The screenshots show the task which is filling in gaps in the lines of drawings to ensure discreet fields for filling with colour. If there's an automatic solution, that's good. Otherwise, it will take 6-8 hours to go through each detail of the 4 (four) drawings and do it manually. Thanks for considering this work.