This coloring page depicts two cheerful trolls that appear to be having a lot of fun. Both trolls have bright blue skin, wild white hair, and big noses that are slightly upturned in a smile. They are wearing necklaces and have their arms raised above their heads in a gesture of joy and celebration. To bring the characters to life, I would color the trolls in a range of blues to give them a more dimensional feel. I would use brighter blue shades on the face, hands, and feet as well as lighter shades elsewhere on the body. For the trolls' hair, I would use a combination of pale greys and whites, leaving the white parts blank to create the impression of highlights. The necklaces should be shaded using darker blues and accented with a lighter hue along the edges. Lastly, I would use a dark blue shade to outline the trolls to make them stand out.