Adding the cockpit

One of the last major areas we need to do is our front window:

There are a number of ways we could do this, but let's try something a bit different. We can just duplicate the ring of edges that makes up the window area:

Then, we'll scale those duplicate edges up just a little:

With the Inset and Extrude tools, you can now create a nice border for your window area:

And we'll just bevel this so that it looks a little nicer:

Then, I'll delete the back of the window faces and add a new object to serve as my cockpit:

With a little beveling and extrusion, we can make it look unique: