Here is the wallhanging made by the class teacher.
The quilt top here is draped over the rolls of wadding in the shop so it isnt hanging straight, but you can get the idea.
Below is how I have pieced mine together. I had joined one block as above and I felt it was too "confusing". I am much happier with how it is now. If I hadnt done this in the class I probably would have used much different fabrics and it wouldnt be so "wow". I wasnt sure that I would be able to work out an alternative block arrangement - so pleased it worked out.