I'm in disagreement about humbrol 30 for the dark green, it does depend on the varnish obviously but I think it's OK. I built models with my grandfather who was a flight instructor during ww2 and his wife who worked at Boscombe down during the same period. I went on to work on warbirds . I know our own perceptions of colour are all different and vary in scale/airbrush/hairy brush but humbrol 30 is the best there is