That requires a bit of explanation. The body, or main hull of the ship, is easily understandable. In cross section, the ship is triangular, comprised of three long tubes that neck down and then back up. There are a number of protruding fins, but the number and size of these could be adjusted. But the nose of the ship didn't really seem to work with the rest of the hull shape. It's beautifully done, yes, but in a confusing fashion. Anyone who has attempted make a model that matched a difficult shape should understand what I mean. However, if you flip the painting upside-down, suddenly the shape makes sense and the model building got underway!
From a vendor on Ebay, I had obtained a small block of Urethane Dimensional Foam. It's much sturdier and firmer than Balsafoam or insulation styrofoam, and yet, it's not as dense a material as Renshape. It proved to be easy to form and work, and a bandsaw zips right through it!
Once I had the shape, some very careful sanding knocked down the sharp edges, and a single large gun port was added to the nose. Three short styrene tubes were used as engine tubes, and all the fins were cut from thin sheet styrene. Yellow paint made a close match to the ship in the painting, and then flat black acrylic paint made up the striping. The hull panel detail came from a Prismacolor Gray marker.
Image: Sectioning off the foam
Image: Rough sanding done
Image: Fine sanding
Image: Shape check
Image: On its stand
Image: Fins added
Image: Yellow base coat dry
Image: Compared to artwork
Image: Another look at the left/rear