One. Triangle. Differences between the main actors. But this requires the space of the performance venue to be dispersed, otherwise the crowded lines will not look good and will also affect the performance of dance steps.
Two. Lead dance team one, group dance team one. Lead the dance with a polygonal, linear or triangular team, followed by a square team.
Three. Square. Suitable for dancing together, hehe, that is, everyone is unified from beginning to end. If there is no change, it is the most conservative.
18 people can't reach the layout of the big scene, so consider triangles or polygons, which will change the appearance. Hehe, there is still some flexibility to cover up the shortcomings of dance itself ~ ~ Hehe, hide the stage black hole ~ ~