Next up were the bulkheads behind the cockpit and radio station. Minicraft only provided the option to build the cockpit (a bare one) and nothing else behind it. Looking around on the internet, I found some details on the radio station and decided to add something there because there is an window there. After hacking, sawing, cutting, measuring, gluing and puttying, this is the result.
I also extended bomb bay area because there is an opening and turret on the upper part of the fuselage.

There is a slight gap between the floor and the walls of the Ventura but I am not going to do much to it. I have a feeling that when I close up the aircraft, one wouldn't be able to see much into the interior. This is why I'm not adding anything else because it will be just an overkill.