Hey Paul, heres what i though when I looked the plane over from your pics.
The engine mount area looks great and I like what you have done. Its given me a few ideas for my current build as well.
The only part of the plane I cringed at was the back end of the fuselage, a lot of wide open space there with no bracing, much like the H9 pawnee and I have found that to be a weak spot in the plane. Its not like its going to fall to pieces there, its just that its a tender spot for not so good landings or low level stalls.
Anyway, from what Ive seen it looks better than the H9 plane, I wonder if it rattles and vibrates as much as mine does with the DLE burbling away !!