Both the K't'inga and its older version the D7 battlecruiser have the Klingon Empire insignia in an odd place - directly behind the neck of the command boom. The two insignia are practically touching one another - they are that closely placed.
While I can see this was done on the K't'inga because the 'contour panels' on the wings leading out to the engines are a 'rough' surface and the insignia may be hard to see there, how about moving the insignia to its proper location of the smooth wing of the D7 at least.
There's a great picture of it at Memory Alpha - just scroll about 2/3's of the way down to see none other than Matt Jefferies holding his original - insignias and all. http://en.memory-alpha.org/wiki/D7_class