All the illustrations were hand drawn on paper using a fine line black pen. The illustrations were then scanned in at a very high resolution before being coloured and then send of to the publishers.
Below shows a photo of hope I worked on the posters like a paper collage before hand illustrating all the various components. ***Yes, I agree, it's a very labour intensive way of working and I will endeavour to learn quicker skills when I have time to learn them! (I have an iPad Pro so have no excuse!)