The first stitch is a single herringbone and then filled in the curve with closed herringbone making bigger stitches on the outside curve. I suggest you draw the shape/curve you want onto the fabric. It is quick and easy to do and can be used 'as is' or a
JaneVille: Hand stitching - Matching the correct embroidery needle with your embroidery thread makes stitching a pleasure. Here's a handy chart to help you pair your long eyed embroidery needle with pearl cotton thread.
rambler rose stitch - Make 3 or 4 loose stitches for center. Using outline stitch, work around & around the center. Make center stitches loose so work stands up, then draw stitches tighter as work moves toward edge.