Tony, these figures seem to be really on the good way.
I love that oddities with the clothing, they give a "break" in the monotony of the uniforms, give color and diversity. That looks really cool.
Take a look at this pic fron the "Das boot" movie: the Captain can be seen in some scenes wearing a civilian squares-pattern shirt, and in the pic he wears a civilian sweater:
I do not know how was in your unit in the Nam, I suppose that the rules where more strict inside your barracks / base ( I HATED the damn training depot period, and also large bases dressing discipline), but I can remember a ship in wich when we were "on our way" every time we left the base / harbour / etc (special tasks ship, 50 hands), I had some civilian clothes of mine that I brought from home... and also, the rain / storm suit to be used in watch duties was a civilian one, not a military low-vis one...
But everybody hated the Naval Police when they picked guys because their uniform wasn´t neat... no fantasy dressing allowed then, you know, Tony ;D
Again, the figs are OK, do not sweat pointless,
midolize your mind... ;D
RG