You'll use the mesh tool to reshape mesh lines by moving mesh points on them, add mesh lines with an unpainted mesh point to the mesh, and delete a single mesh line in the forewing of the first butterfly.
Select the hand tool (), and move the butterfly at the top of the artwork down to the center of your window.
Select the mesh tool (), and position it over the left forewing. Select the left mesh point on the top horizontal line (don't release the mouse button); then hold down Shift, and drag the mesh point to the left. ...