Nebulon B
Nuln Oil wash only

Corvette
Nuln Oil wash then light White Scar dry-brushing.

Nebulon B
Nuln Oil wash only

Corvette
Nuln Oil wash then light White Scar dry-brushing.

Both looking great!
Looks good!! Personally I like my Capitol ships more pristine/darker so I am thinking of using a black or darker wash on mine (if I do anything). This might be be great to use on my x-wing any y-wings once painted to give a more worn look to it.
They look good! I'm afraid I don't have much more feedback than that though.