As you can see my step 3, 9 patches are wrong! I've only just realised as I'm trying to put it all together and the checkerboard effect doesn't work! I think I'll probably just make some new ones and put the others in my ufo block basket, they will get used eventually. Wish I'd picked this mistage up sooner.

I do like my colour's though and will post photo's of my other blocks when they are fixed.