A glassblower turns a blowpipe with a glowing orange gather of molten glass in front of an open furnace in a dark workshop. Authentic documentary photograph, natural colour, believable skin texture and proportions, correct hands with five fingers, physically accurate objects, shallow but natural depth of field. Long metal blowpipe, heat-resistant gloves, the molten glass glows realistically. No text, no letters, no numbers, no logos, no signage, no watermark, no borders.