i think you do need a lime/pistachio/sage in there somewhere...and I would be tempted to put your three blues in the middle, I think it might be quite a dark blanket otherwise.
I was looking at the KingCole Aran cotton
(Fuchsia), Cherry, Rust, Lemon, Buttercup, Lime, Sage, (Evergreen), Surf, Cornflower, (Lilac), Crocus, Merlot
Bracketed ones might be missed out, I am somewhere not very warm!
Was also pondering about doing JAYG small grannies, with minimum as centre and maximum as first round, but have not yet got around to working out what sort of granny, and whether to have a joining neutral colour, or how big to make the blessed thing.
I have so much to finish first, but am itching to get on with one of these!