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[Subject] A single full-body gorilla standing upright on a sandy beach at sunset, large adult silverback-like physique but with brown fur and a relaxed vacation mood, facing slightly left of camera with calm serious expression, muscular chest and arms visible, natural gorilla proportions, no humans present. The gorilla wears colorful tropical floral swim trunks and carries a rolled striped beach towel tucked under one arm. A bottle-like drink or beach accessory hangs at the side of the shorts.

[Props/objects] One gorilla only, one blue-orange striped rolled beach towel, one pair of floral swim trunks with a dark base and tropical print, one hanging bottle or small beach item attached at the hip. No surfboard, no chair, no umbrella.

[Environment] Tropical urban beach shoreline at sunset, soft waves meeting the sand on the left, palm trees on the right, mid-rise and high-rise beachfront buildings in the background, warm orange-pink sky with clouds, distant coastline lights beginning to glow. Natural beach sand texture throughout foreground.

[Composition/Camera] Vertical travel-photo framing, medium-long full-body shot, camera at slightly low human eye level, gorilla positioned center-right foreground, shoreline leading diagonally from front-left toward background, city skyline and palms creating depth behind the subject, candid tourist-photo vibe.

[Lighting] Warm golden sunset light with soft ambient fill, orange and pink sky reflections on water and sand, gentle side lighting on the gorilla's fur and body, natural outdoor contrast, no flash, no studio light.

[Color palette] Warm sunset oranges and pinks, sandy beige, dark brown gorilla fur, green palm trees, blue-orange towel, multicolor tropical shorts. Natural travel-photo palette with playful accent colors.

[Style/Rendering] Photorealistic surreal travel photography, realistic beach environment and gorilla texture, humorous yet straight-faced composition, not illustration, not cartoon, not painterly. Looks like an absurd but believable vacation snapshot.

[Detail constraints] Keep exactly one gorilla only, standing upright alone on the beach at sunset with floral trunks and a rolled towel. Preserve the tropical shoreline, palm trees, and distant beachfront buildings. Do not add humans, extra animals, beach umbrellas, chairs, or party clutter. Keep the tone funny through contrast, not through exaggerated caricature.

Negative prompt: extra people, cartoon gorilla, sunglasses, hat, surfboard, beach chair, umbrellas, party crowd, overdone comedy props, text, watermark, anime style, painted scene, extra animals, harsh midday light.

Suggested parameters: aspect ratio 4:5, lens 35-50mm travel-photo feel, moderate depth of field, 28-36 steps, CFG 6-7.5, sampler DPM++ 2M Karras, style strength low-to-medium for realism, seed 804217560.

Delta prompt strategy:
1. If the gorilla looks too human: append "natural realistic gorilla anatomy and fur, not anthropomorphic".
2. If the beach props disappear: append "rolled striped beach towel tucked under the arm and floral swim trunks".
3. If the environment loses the city: append "tropical beachfront skyline with palm trees and high-rise buildings in the background".
4. If the mood turns cartoonish: append "straight-faced realistic travel photo, absurd but believable".
5. If the lighting changes: append "warm golden sunset on the beach with orange-pink sky".
6. If humans appear: append "gorilla alone on the shoreline, no people anywhere".
7. If the gorilla is cropped too tightly: append "full-body gorilla standing on sand in a vertical travel-photo composition".
8. If extra props appear: append "simple vacation setup, no surfboards, no chairs, no umbrellas".
9. If the shorts lose the tropical print: append "dark floral tropical swim trunks with colorful pattern".
10. If the render becomes stylized: append "photorealistic surreal beach photography, realistic fur and environment".