A selfie in front of the mirror of a girl with the ultimate waist to hip ratio under the night view of Paris

USE_YOUR_REFERENCE_CHARACTER. An exaggerated hourglass figure with a very narrow, snatched waist and wide, curvaceous hips. The shoulders are comparatively narrow, emphasizing a dramatic waist-to-hip ratio. The glute muscles are heavily developed, with thick, muscular thighs. The spine appears visibly arched due to the pose.. Kneeling on the floor, facing away from the mirror while looking back over the shoulder, holding a smartphone to take a mirror selfie, emphasizing the back and side profile.. barefoot. White crop t-shirt, slightly lifted or tied at the back.. Very short athletic shorts in soft pastel pink, made of smooth stretchy fabric, featuring prominent white text (not inverted) that reads 'REFERENCE' across the back.. Smartphone in a soft pink or neutral case, simple necklace.. Smartphone camera (mirror selfie). Wide-angle. Artificial night light from large windows combined with soft indoor gym lighting.. From the left and above.. Modern gym.. Large windows with a blurred Paris cityscape at night, out-of-focus cardio machines such as treadmills and bikes, mirror reflections.. Light blue exercise mat on the floor.. Soft cotton crop t-shirt, smooth stretchy athletic fabric for the shorts.. Smooth, natural skin texture.. Cinematic but realistic. High detail. Realistic lighting, natural proportions despite stylized curves