I love the looks of radial engine aircraft. Probably for the same reason a cousin of mine likes steam engines over diesels. "You can see the moving parts".
I was amazed by the level of detail that modelers put into the same kits I could buy but damn, I never imagined how they got those results. I wasn't aware of after market goodies at the time. These detailed engines, visible inside the cowlings, just added so much more realism.
Nice job!