Billie Eilish Cartoon Version 3D Render Prompt

A highly structured prompt for Gemini Nano Banana Pro to generate a semi-realistic 3D character render of Billie Eilish in a cartoon version. It specifies detailed facial features, dark green hair in pigtails, specific jewelry, oversized green clothing, and technical details like 8K resolution and cinematic lighting.

{
"image_type": "3D-rendered digital portrait",
"resolution_target": "8K",
"aspect_ratio": "3:4",
"camera_framing": {
"shot_type": "medium close-up",
"orientation": "vertical",
"subject_position": "subject occupies center-left frame",
"crop": "head to upper torso visible"
},
"camera_angle": {
"head_pose": "three-quarter profile",
"face_direction": "turned to the viewer’s right",
"eye_direction": "looking slightly toward the camera"
},
"subject": {
"gender_presentation": "female",
"age_appearance": "young adult",
"skin_tone": "light skin tone",
"facial_features": {
"face_shape": "slightly elongated with soft contours",
"forehead": "smooth, broad",
"eyes": {
"color": "green",
"shape": "large, rounded",
"eyelashes": "visible, natural thickness"
},
"eyebrows": "dark, thick, naturally arched",
"nose": {
"shape": "small to medium",
"piercing": "silver hoop nose ring on left nostril"
},
"mouth": {
"expression": "subtle smirk",
"lips": "medium fullness, natural pink tone"
},
"freckles": "visible freckles across nose and cheeks",
"marks": "small scratch-like mark on right cheek"
}
},
"hair": {
"color": "{argument name="hair color" default="dark green"}",
"style": "two high pigtails",
"parting": "center part",
"texture": "smooth with loose flyaway strands",
"hair_ties": "green bands",
"loose_strands": "multiple thin strands framing the face"
},
"ears_and_jewelry": {
"ears_visible": true,
"ear_piercings": "small gold hoop earring visible on right ear",
"neckwear": [
{
"type": "choker",
"material": "black leather",
"details": "silver studs"
}
],
"necklaces": [
{
"material": "gold",
"style": "thin chain",
"pendant": "small circular ring"
},
{
"material": "gold",
"style": "thicker chain",
"pendant": "padlock-shaped charm"
}
]
},
"clothing": {
"top": {
"type": "oversized t-shirt",
"color": "green",
"fabric_appearance": "soft cotton",
"graphics": "black abstract symbol on chest",
"fit": "loose"
}
},
"pose_and_body": {
"shoulders": "slightly angled",
"neck": "elongated, relaxed",
"posture": "upright with casual tilt"
},
"lighting": {
"type": "soft studio lighting",
"direction": "front-left",
"shadows": "gentle shadows defining facial contours",
"contrast": "moderate"
},
"background": {
"color": "neutral light gray",
"texture": "smooth gradient",
"depth": "shallow depth of field",
"distractions": "none"
},
"render_style": {
"style": "semi-realistic 3D character render",
"skin_detail": "highly detailed skin texture",
"material_quality": "realistic fabric and metal shaders",
"edges": "clean, polished",
"overall_finish": "AI-generated, ultra-clean look"
},
"color_palette": {
"dominant_colors": ["green", "gray"],
"accent_colors": ["gold", "black", "silver"]
},
"quality_tags": [
"ultra-detailed",
"8K",
"high sharpness",
"cinematic lighting",
"professional 3D render"
]
}

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