I had the same issue a short while ago. Although I loved my bike, I hated the colors.
I started off taking all the stickers off; this was a royal pain in the arse, lots of Zippo fluid made it happen though.
I used "carbon fiber" print sticker (10$ a roll) to cover the blotts on the tank, and some pinstripe to subdue the orange stripe. I took some tracing paper and drew out the shape of the "blotts" then just laid the trace on the back side of the carbon fiber sticker and cut it out. Then I got some R7 graphics, simply because I could not find any YZF750R graphics anywhere for a fair price. I painted the wheels high gloss black, chopped the fender off and put flush mount signals on. Presto chango, now I like the way it looks.