I started petals three and four. They are foreground petals so they are treated a little differently. First, three different sizes of felt are cut and stitched inside of the split stitch. You can see the one on the left is higher in the center than at the edges. We started with a small piece, then a little larger, and finally the top and third one which fits inside the petal. Then the one on the right has the first row of the long and short shading shading worked.