Started on the engine exhausts.
I used the template's exhaust as a starting point, but had to modify it for the thicker (1mm) card size I'm using. Also, I added an extra shim underneath the built-up nozzle flaps/deflectors, since the original model has these a bit offset.
Test fit (balanced) on the airframe:
Then I started adding some greeblies to the engine body
Here is the 90% finished engine with some of the prototype builds I did
And a close-up. Still needs more greeblie...
Also started working on the various airvents on the top-section of the fuselage.
This is all fairly detailed work, it is going to take some time to finish all of this...