Ok guys,
I dont have much time after work but I have changed a few things. I looked at some diagrams for a plastic model kit and realise the inner engines/cowling were too short. I have lengthened them to reflect the correct sizing. I probably still havent got it spot on but it looks more realistically scaled.
bullet1968
"A Darkness at Sethanon", a book I aspire to model some of the charcters and scenes