At last I think I am finished! Here is the "Butterfly Effect".
I am not totally happy with the scan but it certainly gives the general idea.
I found this piece quite confrontational, especially while I added the textural bits which represented the emerging tumours.
This course has been very exciting. Six weeks well spent. The course was very well designed. Sharon Boggon did a great job. The lessons I will print out and get bound for future reference. I learnt a tremendous amount about design, in general, and about embroidery, in particular. Now hopefully I can apply some of the design techniques to further embroidery but also to my weaving.