This photo has a great example of dramatic split lighting.
This photo has a good example of some leading lines.
This photo also uses split lighting but in a broader way since the side of his face that the flash comes off of is more toward the camera.
This photo uses nice flash lighting and it also makes it look like he is floating a little bit.
This shot is unique with the ice cream cone and the different pops of color from the sprinkles and her hair really go well with the flash.