Wrap the shimmery green fabric around your dress form, making sure that the fabric is inside out.
Pin the fabric in place with your straight pins so that you know where to go back and sew it together.
Remove the shimmery green fabric once it is all pinned. Remove the straight pins as you sew, and use your scissors to cut off excess fabric. This will be the layer underneath your dark sequined fabric.
Wrap the dark green sequined fabric around your dress form, and secure it with straight pins just like your first layer of fabric.