Monochrome pencil sketch of an infinite tunnel in the wall, mysterious shapes and symbols, smoky shapes, curved lines, high contrast, isolated on white background, professional, highly detailed, intricate shading. mc escher style.
墙壁中无限隧道的单色铅笔素描,神秘的形状和符号,烟熏的形状,弯曲的线条,高对比度,在白色背景上孤立,专业,高度详细,复杂的阴影。mc escher风格。