Nice progress, Owl.
If the napkin isn't to you tastes and you're thinking of re-doing it, a thin layer of Milliput may do the trick. When I did my 1/35 Chinook, I used Milliput to do the quilted padding. You won't need as much as I used, but it's easy to work with and will do the trick. For the bulkhead, just lay down a thin layer followed by a light impression with some sort of mesh material ....
Just my 2 cents ....