Eye Light
Keep a small reflection or a little illumination in the eyes to make the gaze and expression easier to read.
Prompt
Use a restrained nocturnal creature eye-glow effect: the original yellow irises emit a soft amber-gold light from within, visibly brighter than a small reflected catchlight. Keep the original black pupils sharply legible, the iris texture visible and both eye shapes and gaze unchanged. Add a thin soft halo immediately around each iris and only a very faint warm spill on the adjacent inner eyelid rims. Keep the emission moderate: no white-out, neon rings, beams, lens flare, large bloom or broad face illumination. Preserve exactly the same dark courtyard, faint wall lantern brightness, framing, expression, red patchwork and overall exposure. The eyes should feel quietly luminous at night rather than like spotlights.
Text: fuse technique research · Examples: imagery generated in-house at fuse (Characters: Ruk · Setting: Mediterranean courtyard (nighttime close-up))
Other techniques
Depth of FieldThe range of acceptably sharp distances depends on focus, aperture, focal length, subject distance and viewing conditions.Composition
Golden HourLow-angle warm light near sunrise or sunset can emphasize direction, long shadows and texture.Mood
UplightingIlluminate a subject from below to reverse the facial shadow directions we usually expect.Portrait

Without techniqueWith techniqueThe divider moves automatically. Hover or focus to pause and drag it.
Effect comparison
In the baseline close-up, Ruk stands in a courtyard at night with clearly visible yellow eyes that do not glow. This example extends eye lighting into a stylized biological glow: the irises shine amber-gold, the black pupils remain distinct, and the surrounding face and wall lamp retain roughly the same brightness. Attention moves toward the eyes, giving the nighttime expression a quiet sense of life; this example uses stylized eye light.
Without technique
With technique