Star Destroyer (Mark 2)

 In mark 2 of the Star Destroyer, I started working on the back of the ship, starting of with the engines. There are two different types of engines, the first engine a large one which goes in and curves into the center point. To achieve this look I made a standard cylinder. To get the inside curves I used a sphere and the Boolean tool to indent that into the cylinder. The smaller one of the two is just simple extrusions.

 Now that the engines are made I placed the engines into place behind the ship. Three large ones across the X axis separated by two smaller engines.

Now I started to work on the finer detail of the back. Starting of with the plates at the end of the wings. To achieve this I used a cube and arranged it into place. Then I made several edge loops which would be extruded in to give it that robust rigid finish.

I now extruded the back of the tower in and started creating the grill/vent on the back. Again this consisted of multiple edge loops equally spaced out. Every other face is then extruded out which gives it the grill like look.