Generally it's "first paid first served". If one takes too much time to revise, I might simultaneously start working on the piece on cue.

绘画顺序：通常是按付款先后来排列，如果其中一张修改时间比较长，我就会同时开始画排在后面的。

youdao

Generally it's "first paid first served". If one takes too much time to revise, I might simultaneously start working on the piece on cue.

绘画顺序：通常是按付款先后来排列，如果其中一张修改时间比较长，我就会同时开始画排在后面的。

youdao