I know this is blasphemy to a lot of slobbering N&W freaks, but I've always liked the looks of the N&W blue engines and cabs.
The engine is the Weaver RS3 with a number of brass parts applied from P&D, as of now it's unpowered. The caboose is a MTH cab. I'm not sure how accurate either of them are or of the paint color (I used C&O Enchantment Blue), but I like the way they look and it's something besides that most boring black I'm used to seeing down here around Norfolk:
(that's my Williams brass USRA 2-8-2, SAL class Q1, gliding by in the background)
I don't see a lot of photos of these, or the red engines N&W owned.