I made this block last night between chatting to my sister on the phone and via Skype. (What a neat service that is.) It was really not much of a challenge. I should have made the half square triangle squares slightly larger and then trimmed them down as I learnt in Myrna’s class but I didn’t and regretted it after the event.
Anyway it turned out fine. I decided to go for a monochromatic colour scheme but there maybe should be a little more of a value change between the 2 darker colours:
I also played around a bit in Photoshop to see what more than one block would look like together.