Curtain  Pattern
Fold Curve Valance Cut 1
Fold Curve Valance Lining Cut 1
The Curtain Lining has to be 0.25 cm smaller than the actual Curve Valance.
For the curve press the lining allowance toward the lining then trim it. Then clip into the seam allowance all the way to the stitching line along the curve. Turn over and press on the edge, this will give the valance a smooth curve.
Add Seam Allowances