Bristol Blenheim MkI Airfix 1/72

After some sandings, I’m almost happy with the result.
 

let's try with a little putty...
 

WTF?? 

Too bad 

Hmmm, after the first layer of TS30, it's not good 

With a Little sanding, it’s almost fixed 

With a Little sanding, it’s almost fixed 

How to fix that?
 

How to fix that? 

One of the difficulties of the kit: the junction of the cockpit with the fuselage