I'm a little slow these days, but I just finished my first block. It's in Stone Cotton-Ease, and is a diamond knit/purl pattern from "the New Knitting Stitch Library".
These photos are awful but the sun has disappeared and I have no idea when it will be back!
The pattern is a 19-stitch repeat so I cast on 40 stitches total; 38 for two repeats of the pattern and one stitch on each edge, plus a row at the beginning and end for a border.
It was a really annoying pattern to remember/read, so I had to keep referring back to my chart, but overall it was not too bad.