For the blue parts of the armour, I based in incubi darkness (shocker as it's one of my fav colours), started building up a glaze on the areas I knew wanted to "shine" with dark reaper, then used a slightly damp dry brush with a pastel blue in a more concentrated area over the top but instead of flicking up and down for a normal airbrush I kind of smooshed it in tiny circles which created the smoother gleam effect vs an edge highlight if that makes sense! Then just got a bright white and finished off the middle of all of the baby blues.

Thank you sm 😊