Looks nice, great masking idea!
To me (IMHO) the red is too pink, the spare tracks should not be silver, and you need more dots.
But give her a good weathering and all but the dot issue could go away!
my wife said the same about the pinkish red.... i guess it' resulted from bad paint or old paint..anyway i decided to modify the color a bit...
the spare tracks were not painted yet... that's tamiya putty .that i put on them to replicate rusty texture...
thanks for the comments