Thanks!
I let him set for a few days to fully cure.
With the flat white and then the raceing white coats I lost some of the contrast of the tan/grey layer. I went too heavy with the raceing white I think.
Rather than start over I decided to try a wash.
I went with Model Master light rust, its a tan/yellow color. I figured the enamel paint would not dissolve the Tamiya lacquer.
I thined it down a lot and put it on with a thick/loose brush and wiped off excess.
So here is where I stand now:
I let him sit overnight, today or tomorrow I'll dry brush on some very light grey, let dry, and then just a bit of pure white.
Then I'll reevaluate.