选择笔刷工具，绘制一些不同角度的蝴蝶，角度可以使用编辑-自由变换来进行调整。

Choose Brush Tool again to picture the butterflies. Place them on different angles, but they must be of different dimensions (Edit? Free Transform).

youdao

在选择笔刷工具，用里面的大涂抹碳笔，在图片中对人物以外的区域进行涂抹，颜色用深一些的颜色，用以降低色差。

Brush Tool option a brush type named Chalk and start applying it on a new layer ( Layer ?Mew Layer ), selecting a darker color that we'll use on the whole background.

youdao

如果你已经选择了笔刷工具，按住opt键可以快速启动吸管工具。

If you have the Brush tool selected, hold down Opt key will quickly activate the Eyedropper tool.

youdao