How to copy the pattern to the grey cloth

If you don't plan to modify the pattern according to the change of figure, you can cut the pattern directly and cut the cloth directly on the gray cloth with a pin. If you want to keep the pattern, you can copy it with thin paper first (for example, the draft paper for practicing calligraphy is economical and transparent). Then there is a special single-sided carbon paper, which can be drawn on cloth with wheels as tools.