It would be a much stronger photo if you cropped it right down the shadow line on the nose in portrait position. The dark areas take away from the impact of the image, there's just too much that's not there.
Here's a tip, take piece of cardboard about 2/3 the size of your monitor, cut into an L shape. Then hold it in front of images on the screen to see what different crops would look like without having to go back and forth in a photo editor.