One of the important skills of photography is to judge the best angle of view for the composition. A background that can look quite boring at eye level can suddenly appear dramatic seen from higher up, lower down or obliquely. A low angle give the shot impact here. It makes the model seem taller, catches the light on her face and set it against the vibrant blue. The angles of the building, and the shadows falling on it, add a strong, graphic element to the composition.