This tall, thin bird Pokemon has two long necks, a black body, and white wings and tail. Its head is a bright red with a yellow beak and its two long legs have three toes each. To emphasize its slender frame, I would color the body and wings in light, soft shades of black. For the head and beak, a brighter red and yellow could be used to make it stand out more. The legs could be a warmer shade of grey, which would contrast nicely with the black body. For the background, a gradient can be used, gradually transitioning from light blues to purples. This is sure to bring this majestic bird to life!