I have been painting the purity seals on my Grey Knights.
I used a light brown foundation paint for the paper of the seals and the red for the wax and then highlighted with normal Citadel colour.
I also took the opportunity to add some “burn” weathering to the flamer.
I have also been tidying up the armour connectors and painting them in Chaos Black over the drybrushed Boltgun Metal in order to make the armour look a little smarter and neater.