Premium Japanese Gym Poster

A premium vertical poster advertisement for a fictional sports gym brand, photographed in a realistic high-end fitness editorial style. Show a fit athletic adult woman with a toned, curvy physique in a modern gym, captured from upper thighs to head in a dynamic three-quarter pose while performing a cable machine exercise. She has hair_color hair tied in a high ponytail with loose strands, lightly glistening skin as if from sweat, and she wears a deep navy blue high-cut one-piece training bodysuit with thin straps. Her right hand grips a black cable handle close to her waist, with the cable extending diagonally down to the right; her left arm is bent and braced outward near the machine column. Use dramatic warm sunlight from the side mixed with cool gym ambient light, strong highlights on shoulders, chest, arms, and thighs, shallow depth of field, blurred weight machines in the background, and a luxurious, motivational commercial fitness atmosphere. Compose the layout like a Japanese gym poster with bold white Mincho-style vertical headline text in the upper left reading headline_text, a thin blue horizontal line beneath it, and a smaller white subheadline below reading subheadline_text. In the bottom left, place a minimalist geometric logo mark above the brand name brand_name in white uppercase sans serif, with the small tagline tagline. Clean premium typography, strong contrast, aspirational branding, practical ad-poster design, 4:5 vertical format.