I started filling in the diamonds of the sweater, using Felicity's Garden "Sky Blue" and "Blueberry." Because Felicity's Garden is a heathery-looking thread, it gives the sweater the soft look of real Shetland wool. I added a few diagonal lines of the pattern using Felicity's Garden "Brown Raccoon."
I was making good progress on Nigel's Argyle sweater when it occurred to me that I had several other areas with a lot of brown in them yet to stitch. So, for now, I've left the sweater half-done and moved on!
Instead I worked on Nigel's jacket lapels, using Petite Very Velvet V648 in basketweave. So far, so good.
There's still a lot of jacket left to stitch, so I'll try to keep my needle away from the sweater and concentrate on getting at least half of the coat done!