Actually there is no problem with this shot. Model's figure is quite outstanding by itself to catch an eye on her. And the road line goes in two ways - from model to the corner, but then - back from the corner naturally following the widening - it feels like running water, eyes follow this dynamics, and it brings them straight to the model's feet, and then - up to the top of her figure. So you've actually got your triangle.
RE: Photography Rules Are Meant To Be Broken #1 - Rule of Thirds