an anatomica engraving drawing of, <lora:anatomica_v90_rank64_bf16-step04000:1>, anatomica, An anatomical drawing of the human back muscles, emphasizing the layers of muscle fibers, tendons, and ligaments, presented in a classic engraving style with sharp lines, cross-hatching, and high contrast. back muscles, anatomy, engraving, vintage, cross-hatching, monochrome, high contrast
