This is a decent capture, but the theory of 'edge' is only relevant through the title of the image. I think the composition may also be a little tight. It is usually good to fill the frame with the subject, but there may have been some extra opportunity to let your skier become part of a winter landscape here as well.
Great colors, good capture of action. It looks like the picture could have been taken at a higher resolution, as some of the edges are chopy. A little too much may have been cropped also, as the other yellow ski might ad more to the photo.