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...