Use case: background-extraction. EDIT TARGET: the supplied marina portrait. Change ONLY the pale cream rectangular background to genuine transparent alpha. Preserve Marina's exact adult Latina Japanese face, medium-tan skin, wavy brown ponytail, white and coral tennis warm-up jacket, white crew-neck shirt, tennis racket, hands, pose and friendly expression. Preserve the same framing, clothing folds, crisp pixel outlines and ordered-dither texture. Do not redraw, reimagine, beautify, recolor, mirror, resize or reposition the character. Keep the original1122x1402canvas and same character scale. Every character pixel including all white/light-gray clothing and props must remain opaque; remove only exterior background and true exterior gaps. Retain clean crisp pixel edges with no cream halo. Transparent PNG cutout, not a white/cream backdrop and not a drawn checkerboard. No scene, drop shadow, text, border, label or watermark.
