The problem with checks on this is that you don't have the pleating and folds that you get in a kilt so you can't hide anywhere with the pattern.
I think you're right about keeping the collar as a contrast. Brian S never strips but always just paints over. As you know his paintwork is spectacularly even and thin so he can get away with it.
Aye sex wi his socks oan
Great work on the face Brian ,Brave decision to strip