板岩屋面的薄片叠层

提示词

板岩屋面保留薄片搭接、轻微边缘不齐和深灰色差，坡向与铺排一致，不把片材画成厚石块堆砌。

Show slate roofing as thin overlapping pieces with slight edge irregularity and dark-gray variation, following the roof slope and laying direction rather than stacked thick stones.