I found another great video that will help with understanding composition. Here Mark Wallace actually draws the leading lines and compositional shapes onto the photos to directly illustrate the concepts. Again as always this is something that is free to learn and can be done with any camera, it is about using elements in the frame to highlight your subject or feelings or emotions. This will help create a story which will improve your photos regardless of the camera (or phone) used. And again as always get out and practice with what ever you have, its the only way to get better.