Create a watercolor artwork depicting a 20-year-old Nigerian man with dark skin and pink afro hair. The focus should be a close-up of his face from a frontal view. Use the fluidity and transparency of watercolor to capture the softness of his skin and the texture of his afro hair. The vibrant pink color of the hair should contrast harmoniously with the depth of his dark skin, creating a composition that expresses both delicacy and strength. The light brushstrokes should convey a sense of movement and freshness.