I thought the Peter Pig ships looked pretty crude to my eye.
Yes, the PP ships can be a bit crude (some more than others). However, as Bay Area Yard only has a tiny selection of ships available in 1/600 and Thoroughbred changed to 1/1200, it's not easy to find ships in that scale. That's why I 3D print most of mine (although I got a couple of PP and Bay Area vessels).
I've pondered if I should change to 1/1200, as the selection is much better, but I've already got a sizeable collection in 1/600, and I like the look of the larger ships, even though the smaller would be more practical...
The only larger ships I've seen are from Old Glory in 15mm (
https://www.oldgloryminiatures.com/products.asp?cat=15mm+Ships+Civil+War) and occasional models in 28mm, which, however, most of the time are grotesquely distorted to fit on the table...