Take a look at the second ad box. It sort of goes with the picture. http://www.designersunglasses.co.nz/quiksilversunglasses/quiksilver-sunglasses.htm Is this allowed?
Even though the image isn't perfectly aligned with the AdSense unit, it could still be argued there's an association. I think it's borderline but I would just leave it the way it is - AdSense will give you a warning before taking any other action if they don't like it.