I really love the work of Di van Niekerk. She does such lovely work and she makes it look so easy. Kathy posted a link to Di's YouTube video on doing the iris stitch and I thought I'd share too.
Also here is her video on spiderweb roses...they are often used in crazy quilting....
Di van Niekerk has other videos if you are interested....here.
Til next time.....
A great source for embroidery stitching how to's is Mary Corbet's videos which you came find ...here.