I think it looks good.
That's the great thing about everything, not everyone thinks the same thing looks good. I mean imagine if we all were married to a say beautiful 5' 5" brunette,electric blue eyes, short hair,nicely small breasted,flat stomach,tiny waist and just right amount of tail that made you want to touch,rub,smack it each time you passed it.
Wouldn't be any fun to just check out what other's had.
They would all be the same, same as our bikes
But really I go back and forth on the fender option also. Sometimes I think the busa fender is too bulky and sometimes think the GSXR fender is too small. But either way it is how I think it looks the best at the time. Another thing I messed with on the stocker is painting the bottom half black so it sorta flows in more with the frame, wheels and such and doesn't look as bulky that way either, helps on the green one that I did the fairings black on bottom also.
I was looking at the Gen 2 the other day and happen to seen a carbon fender off my 05 GSXR750 sitting on the shelf and remembered people switching 1000 fenders and was curious about it. Well it bolted right on no problems, so anyone looking to swap their fender can go with the 600/750 fender as well which opens the options to picking up one pretty cheap on e-bay.
Switch between the Coerce carbon and stocker on the Gen 1 also. Just like when you get dressed in morning, all depends on what you want to wear that day will set the look.
But I say with either fender it looks good, and if you like it that's all that matters.