The girl's hot and the bike's kicka$$, that's for sure. However, there are lots of things that are wrong with this image, or taht you could do differently in my opinion to make it better. Here goes:
What's that a camo bikini? Pick a bikini that goes with the bike
I don't so much mind the hot spot on her hip or the reflections. However, using a polarizing filter would have really hepled cut down on them.
Bikes always photograph better on the pipe side. This would be a much better image if you had come around to the pipe side, kept her standing, put her left hand on the clutch grip, and her right hand down on her bikini bottom.
A little more shallow DOF would have been appropriate in this image If you're using a point and shoot you have very little control over that. If you're using an SLR, get it out of portrait mode and shoot on manual.
She looks like she's working to stay in her pose. Wrong answer. She should look relaxed and sexy. The viewer needs to think that if he had this bike, he could bag her.
This is just another picture of a pretty girl and a rad bike. Go forth and create a killer shot. I look forward to your next efforts.