Thanks, Christian. I'm glad you like it.
Paul,
I used Model Master Acrylic "Green Drab" with a brushing of black pastel chalk, then a gloss coat, and then a black wash and then a flat coat. Below the water line is Polly Scale "Oily Black" the canopy is "Olive Drab" and my eyes are "Vivid Red".
I can't say that these model paints are exact to the MilSpec color for Vietnam War PBRs, though. These colors worked, for me, on this one.