Colored pencil illustration, pastel drawing of a sad teenage student at a desk with graffiti on the wall, Asian, black hair, paper cranes, clouds, art style

彩色铅笔插图，一个悲伤的十几岁学生的柔和图纸，在桌子上，墙壁上有涂鸦，亚洲，黑发，纸起重机，云，云，艺术风格