This black Lego ninja is ready for action! He is wearing a black mask and a black and white scarf around his neck. In his right hand is a black sword. He has a black and silver belt around his waist and black and silver leg armor. On his back is a black and silver backpack. To protect himself from danger, he also has black and silver armguards and black and silver gloves. To bring this scene to life and make it pop, I would start by coloring the ninja's mask and scarf in bright, contrasting colors like red and yellow. For the sword, belt, leg-armor, backpack, armguards and gloves, I would choose deep shades of gray or silver and highlight with a hint of black. The background can be painted with cool and calming blues or deep greens to create the perfect environment for this daring ninja to do his work.