howard hill afl's are just elb's with flattened bellies. the cross section variations are many, and as long as they are in harmony with the bow's length, riser length, and fade out angles, they'll still be hh afl's.
there is a "look" to an afl, but there can be many dimensional differences from one to another, as well as materials differences and how they're fitted into the bow's design.
clearly, a reverse handled hill longbow is radical whence compared to his original creations, and certainly to any elb, but like it or not it's still an afl.