I actually think it has a charm all of its own. There were points to Athalon Boy's original model that I liked, and there were some I didn't. The base model has a lot of lovely curvature, and in some places, it needed to have less actually. In which case, reverting to some aspects of the original is necessary.
If I were to note another aspect that I think ought to be touched up on, I'd reference the spine of the bomber. The angularity on top of the intake is intact, and this is good. I'd suggest also retaining the sharpness of the foresection which flows back into that inlet. It's actually a very notable characteristic of the Boa, and is not at all bad in my opinion. However, keeping the curve is quite nice, too. Let me illustrate: