Thanks. I had planned on adding a bit of detail to the area where the thrusters used to be, but I'll generally be keeping it simple I think --just some raised paneling and a little support structure under the canards.
As to elongating the hull behind the cockpit, I'll be adding more fuselage onto the back of the model, but it won't actually look quite like my original concept. I did move the wings backward so that it's a bit longer than it was initially. Hopefully that will help with the stubbiness.
The new turret looks OK though? I also moved the turret ring back about 3cm to help move some of the bulk further back on the model and give it a slightly faster appearance