Thank you, Jeroen, Dave ans Steve.
That looks great! I build the Roden one a few years ago, and it seems that Arma Hobby have captured things Roden did not, such as the underside stiching and control handle, and a few other things.
The only thing I might mention is that the trailing edges of the elevators look a bit thicker than those of the Roden model, but other than that I think it is a big improvement over the Roden model...
Please note, that elevators were steel frame structure wrapped in linen. So there is no chance of razor sharp trailing edge, the thickness of the elevator and the stabilizer should be constant.