im not quite shure about this one. an extrem closeup like jacoggins suggested might be a way. but basically i go with punkclown. the selective blur/DOF correction is for sure a good way to improve the picture. and i think its a good idea to go back to make some different shots. your original shot is not suitable for a portrait orientation cropping. but as punkclown said: "you have a good eye for spotting the potential in this."