Use the downloaded photo reference and fully preserve the exact facial features of the model, proportions, bone structure, shape of the eyes, nose, lips, skin tone and individuality without changes. The face should remain fully recognisable and photorealistic. Create a museum-quality portrait in graphite and mixed technique, a centred composition on a perfectly white background. The left half of the model’s face is made entirely in an ultra-detailed graphite pencil. You can see soft layered hatching, delicate cross hatching on the skin and hair. Keep the natural details of the skin - freckles, pores, tonal transitions - in graphite interpretation. The hair on the graphite side is neatly drawn in thin separate strands with smooth tone transitions, exactly repeating the real hairstyle of the model. The face is divided in the centre by a dramatic vertical rupture of the paper. Through the gap, the right half of the face is revealed in a hyperrealistic colour, while the similarity with the model from the reference is completely preserved. The eye on the coloured side should correspond to the real eye colour of the model, with high iris detail, natural glare and depth. The skin on the coloured side is smooth but realistic, with natural halftones and light warmth. The lips are natural, corresponding to the model. Real strands of hair come out through the paper tear. The edges of the torn paper are textured, slightly bent, cast soft realistic shadows on a white background, creating a feeling of volume and depth. Strong contrast between monochrome and colour. Ultra-realism fine art. High resolution. Maximum sharpness. Professional studio lighting. 8K detail. Without cartoonisation and without changing the proportions of the face.