That strikes me as a surprising amount of flare. I agree with Frank... in the first shot the light is from the rear over your right shoulder, and in the second the sun is high and a little right of center. Isn't the camera's door on the right also, where it might serve to shade the lens a bit? If you have a filter on the lens that could encourage flare... If you have your shapely assistant carry a parasol to shade the camera as you shoot, that should solve the flare issue. 😀