The angry red bird is ready for a fight! His wings are spread out and his beak is open wide, showing his aggression and will to take down the green pigs. He is surrounded by a flurry of yellow, orange and red feathers, reflecting his fiery personality. To emphasize his energy and readiness to fight, we should color him in a bright scarlet red with a hint of yellow and orange suggesting the strength of his wings. The green pigs, in contrast, should be colored in a darker shade of green to show their cowardice in the face of Red's rage. Add some dark shadows to their faces to further illustrate the fear they feel when confronted with the might of our angry bird.