Keep sanding that transition area, you'll get it seemless. Use an angle grinder then bondo over the area.
I understand how you feel about the FZR in the background but ain't nobody trying to steal that shit.
Gotta love a guy who can make something out of nothing and go racing. Oh and nice job on the bodywork too
for the ears, unless you have done so already, do about 2-3 layers of glass on the underside so that you are sandwiching the original bodywork. It will be much stronger.
One coat of rattle can. It doesn't quite match but, after a second coat and some high gloss clear it'll come in. I ain't fuckin around.