Jonathan is a young man dressed up in a spooky monster costume. His skin is green and his shirt is purple with black stripes. Wrapped around his neck is a beautiful crimson cape with black edging, tied together with a silver buckle and a black belt. His pants, shoes and mustache are also black. He stands in front of a vast and magical looking castle, seemingly waiting for an adventure to come knocking at his door.
To colour this piece, I would suggest starting with the castle. Give it a strong foundation with a layer of stone gray, then continue adding darker and lighter grey shadows to create an illusion of texture and depth. For the monster costumes and body, I would use mainly purple shades, adding blocked out areas of black to define the edges and create a more cartoon like feel. Lastly, I would use the lighter greens to bring out pops of colour over Jonathan's skin. Use yellow, blues and browns for the details and accents for a realistic look.