Craft an engaging comic-style coloring page, depicting a scene where superhero princesses are honing their skills together. Each princess should be showcasing her unique abilities in a safe, friendly competition. The medium details and simple line art should accentuate the dynamism and charm of this scene. The coloring page is to be in black and white, presenting a canvas for children aged 8-12 years to add their creative touch. --ar 850:1100 --v 5.2 --style raw