Hey lads thanks for the feedback.
Quinten- the turret texture was achieved merely by dropping on Revell liquid cement and rubbing it in with my finger to the desired tackiness(?)

Have just sprayed with grey primer, and it has blended in well!
Richard- the gun barrel hasn't actually been glued yet! Just positioned it for arts sake :-) How do you think I should clean up the pistol port? From pics I've seen it looks have real slabs of weld to either side... Maybe make a smoother transition onto the turret side? Oh and I know aboot the "Battling lady". Was going to convert my last tank to this, but came unstuck on how to position the prongs of a Cullin device on the front without photo reference.
Rob, as above with Richards' view on the pistol port. Do you mean just to smooth it down?
Joe, I actually make my guards out of brass strip, as I have only recently found out that for example the Dragon PE included with their sets are far too flimsy for my liking. Doing them yourself is good for the fact you can make them perfect as you see fit... And I used them for all brass items you can see on the tank. Glad you like them though!!