Painting Viking Shields- Help Request

[Cubs]

When doing a simple geometric design (fancy stuff I tend to chicken out and go for transfers) I usually just block-colour the sections on and then add depth with inks, washes and maybe a bit of dry brush stippling at the end depending on how mucky I want it to look. Nicks and battle damage can be applied with a mark made with dark wash, then with a thin line of highlight underneath.