3:4 personal colour analysis board for a fictional young woman with dark hair: her portrait at the centre, surrounded by draped fabric swatches labelled Spring / Summer / Autumn / Winter, a recommended palette of 12 swatches marked best, a hair colour suggestions row and a makeup tones row, clean beauty-editorial layout on white, small sans-serif labels.
Upload a portrait and get a seasonal colour board: best palette, hair colours and makeup tones. ChatGPT colour-analysis prompt for GPT Image 2.6.