This first image is the line art done in my sketchbook. That was later on projected onto a large piece of Illustration board.

Then a light wash was put down and a basic wash for the characters of the painter. This was all done with Windsor Newton watercolor.

Some more detail was added before adding the inked outlines. Adding darker pigments and white gauche for highlights.  After that, black India ink was applied for line quality.

All characters are not mine. From left to right, Bugs Bunny, Rabbid from Rayman Raving Rabbids, Watership Down, Roger Rabbit, and Trix’s Rabbit.