The fabric is Aida (stiffer than a board, especially after felt!) . The threads are all Perle cotton except for two rows of stranded cotton floss - the palest pink is 2 strand and the row below is 6. The perle varies from DMC 3 to Finca 12.
The red stitching is my Chevron practice - nothing very exciting - I need to think of something more adventurous.
The remainder of sampler 4, Lesson 1, is cretan , a stitch that I can see has tremendous possibilities.
Now I really need to concentrate on Lesson 2
Hyperbolic Crochet at Worldcon75
8 hours ago