Its a good start mate, there appears to be some parts that dont match with the image. Im not being picky LOL...once a Surveyor...I will wait to see more if you can mj? There are line points etc that dont seem to match what it should be...not having seen the actual building I could be wrong.
Cheers bullet
bullet1968
"A Darkness at Sethanon", a book I aspire to model some of the charcters and scenes