Just one of those things that stand out when you have done modelling, even if only a little like me.
Basically you can see triangles on the rear fuse strips. They should be smoothed into individual groups so it is a smooth long piece but still showing the ribbing.
Looks like poly smoothing may just have been left off there.
The tail is also a bit of a bumpy mess and why folks put aerial wires on that are thick and black :o I really don't know.
Most of this doesn't show in the other pics and if you are happy with it for a tenner then great.
Garry