Great composition. The model is well posed and the color of her outfit makes here the obvious center of interest. The viewer sees her first, then follows her gaze to the surfboards, whose lines direct the attention right back to the subject.
I love this shot, one of my favorites of the challenge. The contrast between the main subject's calm and the activity of the people in the background is great. I might have cropped just a tiny bit more off the top, but this is a great picture. 10 Good luck.