Quoting Jonathan .
This is very far from the best. It is way too big to be minifigure scale. The back is huge. It is way to wide, thick and, well, it doesn't look good either. The intakes are way too large. They are the wronge shape, too. The front is not scale at all with the back. This needs A LOT of work.
you are right, its a bit big and wide at the back, i will make a v.4 soon! =P