The classical oil painting turns your photo into an Old Master portrait, with layered brushwork, visible linen canvas and warm candlelight. It works in NanoBanana, Gemini and ChatGPT.
1. Open the image tool and start a new conversation.
2. Send a waist-up photo with your face sharp and well lit.
3. Paste the full JSON prompt in the same message as the photo.
4. Keep the "subject" block intact: it is what preserves your age, your skin tone and your distinctive marks.
5. Adjust "wardrobe" if you prefer another colour of historical dress.
6. Generate the painting and check that the brushstrokes are visible and the skin is not plastic.
Tip: the negative list rules out the digital-painting look on purpose, because that is the failure mode here — a smooth image that looks filtered rather than painted.
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