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[Subject]
Single young woman (virtual-human style) singing into a handheld microphone indoors. She has medium-light skin tone, brown hair styled in two buns with straight short bangs, expressive open-mouth singing face, and focused joyful performance energy. She looks slightly upward-right while holding microphone near lips.

[Clothing & accessories]
- Mint/teal sports bra or fitted crop tank.
- Olive/khaki high-waisted pants.
- Layered silver chain necklaces.
- Bracelet/bangles on left wrist.
- Small stud earrings.

[Props/objects]
- Black handheld microphone with metallic ring near head.
- Music studio room background with minimal furniture/equipment silhouettes.
- Doorway/opening on left side with warm orange light spill.

[Environment]
Intimate recording/rehearsal studio interior, modern and uncluttered, performance-in-progress mood.

[Composition/Camera]
Vertical portrait (4:5). Medium close-up from upper thighs/waist to head. Slight low-to-eye level angle. Subject dominates frame center-right with dynamic arm/mic gesture.

[Lighting]
Cinematic dual-color lighting: cool cyan/teal ambient fill across room and skin, contrasted with warm amber/orange side light from left doorway. Soft shadow transitions, performance vibe.

[Color palette]
Teal-cyan dominant environment with warm orange accent lights, muted earth-tone pants, natural skin tones.

[Style/Rendering]
Photoreal virtual-influencer music-studio aesthetic; polished but candid performance moment.

[Detail constraints]
Keep one female singer holding a microphone mid-vocal. Preserve double-bun hairstyle with bangs, mint crop top, layered chain necklaces, and teal-orange lighting contrast. Maintain studio interior with warm doorway glow on left. No extra people.

Negative prompt:
concert stage crowd, outdoor festival, guitar props, dark monochrome lighting, overexposed flash, no microphone, casual selfie pose, anime style, heavy blur, watermark text

Suggested generation parameters:
- Aspect ratio: 4:5 (1024x1280 or 1280x1600)
- Lens/focal feel: 35-50mm portrait
- Depth of field: medium (subject crisp, room softly secondary)
- Steps: 28-40
- CFG / guidance: 5.6-7.1
- Sampler: DPM++ 2M Karras
- Style strength (img2img): 0.35-0.6
- Seed suggestion: 913265407

Delta prompt strategy (top 10 drift risks + corrective micro-prompts):
1) Microphone missing
   - Corrective: "handheld black microphone held close to mouth while singing"
2) Hairstyle changes
   - Corrective: "brown double buns with straight short bangs"
3) Lighting loses contrast
   - Corrective: "cool teal ambient lighting with warm orange side light from doorway"
4) Outfit drifts
   - Corrective: "mint sports bra/crop top and olive high-waisted pants"
5) Expression too neutral
   - Corrective: "open-mouth mid-vocal expression, energetic performance"
6) Background becomes stage crowd
   - Corrective: "small indoor studio/rehearsal room, no audience"
7) Jewelry omitted
   - Corrective: "layered silver chain necklaces and wrist bangles"
8) Subject not dominant in frame
   - Corrective: "medium close-up with singer filling most of frame"
9) Style too cartoonish
   - Corrective: "photoreal virtual-human portrait aesthetic"
10) Wrong orientation
   - Corrective: "vertical 4:5 portrait composition"