Design Kugelschreiber Sticker-Pack Mockup in Rot und Gold

Photo-real product mockup of a classic red sticker pack with "design kugelschreiber" logo printed at large hero print. Mockup style: cozy home, luxury black + gold 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): "design kugelschreiber" (de).