TOS Enterprise was a souped up Mustang. Now, it makes sense. The JJ-prize had Buick warp engine nacelles and a Ford engineering hull, so all it needed was a set of white walls to complete the look. The 1965/66 Mustang is still a cool car. 1950's cars look every bit as clunky as the JJ-prize. No wonder I hate it.
The only thing that doesn't make sense is Archer's ship. It looks more like a TNG ship.
Automobiles are partially shaped for aerodynamics, well, the 1990's Fords were shaped almost exclusively for aerodynamics, but they are also designed for aesthetics. TOS Enterprise was, of course, designed to look cool on TV, but it supposedly took its shape from practical necessity. The model makers obviously saw the efficiency of convex shape to enclose a greater volume in the post-TOS designs. Nobody made up a story to explain TOS series design, and thus, nothing derives from it. That makes Kirk's Enterprize a complete odd-ball. That bothers me.
The Klingon battle-cruiser is another odd-ball. At the outset, it was designed to have all the features of the Enterprise. It had two warp nacelles, separate command and engineering hulls, and a big honking forward facing dish antenna. Curiously, the warp engine nacelles of the Klingon ship were made up of 3 cylinders that were about 1/3 the length of the Big-E's nacelles. What make that ship difficult is that Jeffries incorporated some radical flourishes into hull structures. Making something derivative, yet different is no mean feat. The BoP is barely believable as a Klingon design, simply because the original Klingon ship is so weird.