This coloring page features Matilda the Angry Bird. She is a white feathered creature, with a bright red head and a large curved beak. Her black eyes are narrowed and focused, reflecting her serious expression. Matilda appears to be steaming with rage, her feathers standing up and her wings tensed, ready to take flight at any moment. To emphasize the intensity of her emotion, I think painting her red head a few shades deeper and leaving the white parts brighter will create an interesting contrast. Additionally, I suggest keeping her eyes black and darkening the edges to communicate her fiery, powerful nature. To bring out her unique flair, I recommend incorporating a few yellow tones to contrast the other colors and make the figure pop against the page.