Generate an ultra-realistic portrait of a black woman with deep, dark skin, focusing on photorealism for her face while maintaining a high-contrast and vivid look. Her hair should be made of soft, cotton-like clouds in a pastel rainbow of colors, adorned with large, intricate mechanical gears and delicate, crystalline embellishments. Her face features metallic and organic elements, such as colorful, textured designs reminiscent of fractals, subtly blending into her skin. The attire should integrate gears and steampunk details, contrasting with soft, flowing textures, featuring mechanical components on her shoulders and collar. The lighting should emphasize the contrast between the soft pastel tones and the metallic elements, creating a sharp, high-contrast image while ensuring the facial features appear photorealistic, avoiding any illustrated or cartoon-like style. The overall composition should be sharp and high-resolution, highlighting every intricate detail of the mechanical and organic components.