Mockup fotográfico de funda roja con power bank promocional

Photo-real product mockup of a classic red phone case with "power bank promocional" logo printed at full back. Mockup style: outdoor lifestyle, bold red + white logo palette. Studio-grade photography, sharp focus, natural fabric texture / mug ceramic / paper grain. Magazine-quality merch shot, no watermarks. Logo is generic placeholder typography — no real-brand marks. Realistic product proportions. Target search intent (rendered visually, no on-image text): "power bank promocional" (es).