You can draw a lot of ground.
Such as the ground or the road, such as perspective deformation,
It might be good to use it in the wind of old wall (plaster, etc.).
↓ Gravel

↓ Gravel Grass

↓ Gravel Soil

I sat down.

↓ SA Moss

▼ Extra (small image compared to the above material) ▼
You can draw forest and mountain path (sunlight-ish) ground.
↓ Because the ink multiplication is turned on, please remove it if it is not needed.

Down Gravel mountains or tsuchiyama.

↓ The forest can be drawn on the ground without any particular deformation.

色々な地面が何となく描けます。
遠近変形などで地面や道にしたり、
昔の外壁(漆喰等)風に使っても良いかと。
↓砂利

↓砂利草

↓砂利土

↓土くれ

↓土コケ

▼おまけ(上記素材に比べて小さ目画像です)▼
↓森・山道(木漏れ日っぽい)地面が描けます
↓インク 乗算がONになっていますので、不要ならば外してください

↓砂利山とか土山とか

↓森は特に変形しなくても地面っぽく描けます(多分)

Various ground 地面色々
Bonus おまけ