Start with a window outside the frame
Nell, an original adult character aged 35, with short auburn curls, wearing a navy canvas overshirt over a mustard T-shirt. Head and shoulders, camera at eye level, relaxed expression, plain gray workshop wall. Soft daylight from a large window outside the frame on the viewer's left. Both eyes visible. Naturalistic portrait photograph.
Use Nell, a fictional bicycle frame painter aged 35, to work through that question. Keep her short auburn curls, navy canvas overshirt and mustard T-shirt in each brief. She faces the camera with a relaxed expression. The crop includes her head and shoulders against a plain gray workshop wall.
These are AI-assisted, original writing examples. We have not generated comparison images from them. A repeated description helps organize a comparison; an image model may still change the face or clothing.
Look at the shadow beside her nose. Does it fade gradually, or end in a hard stripe? Can you read the darker cheek without turning the whole face pale?
If the shadow edge looks too abrupt for your intended picture, change only the lighting sentence to "Broad window light softened by a thin curtain." Leave the crop and clothing alone. If the face becomes too flat, keep that soft source and ask for less light on the opposite cheek in a separate revision.
Move the main light farther to one side
Here the review question concerns how much of the shadow side you want to see. Check the eye socket, jaw and collar. A dark patch that hides the expression may be more than you wanted.
Try replacing "The cheek on the viewer's right is darker" with "The cheek on the viewer's right is gently shaded." That asks for a smaller brightness difference. Keep the light direction unchanged while checking the result. Calling the whole picture "dramatic" could invite unrelated changes to pose or color.
Give the curls a narrow edge of light
Trace the outline of the hair. Can you follow the edge without a bright band swallowing its texture? Check whether the face still has the soft light requested in the brief.
If the outline becomes a thick halo, replace "catching the outer curls and shoulder" with "touching a few outer curls." Change that phrase first. Rewriting the hairstyle at the same time would make the comparison harder to read.
Light the wall behind her
Check where the lighter patch sits. Does it help you distinguish the hair from the wall? Has it spread onto her clothes or become a distracting white circle?
For an oversized patch, change "a subdued patch" to "a small, softly edged patch." Keep her position fixed. You can then judge whether the background change helps at the size where you will use the portrait.
Choose one revision before submitting
Write a plain observation, such as "the eye on the viewer's right disappears." Select the sentence that addresses it. Our character image prompt guide covers the rest of a portrait brief.
You can adapt a brief in the image workspace. Use its available settings and review the quote before submitting. New images use credits at the current prices; writing a revision does not start a generation task.
For image requests inside a conversation, follow the chat media guide.
For photography context, Nikon's two Speedlight walkthrough demonstrates separate lighting for a subject and background, with power adjustments after review. Its camera and flash settings describe physical equipment; they are not Luma Atelier controls.