Cropping out a collar ring and adding contrast with Curves brought the focus back to Buster.
Ordinarily, the Fix-It Team finds it perfectly acceptable to use shallow depth of field to let areas other than your subject’s face fall out of focus in a portrait, as Jade Ah Heng of Rose Hill, Mauritius, did here with her handsome friend, Buster.
But that metal ring hanging from Buster’s collar acts as an eye magnet. And now that we’ve pointed it out, just try to keep your eye off it. It defeats the purpose of throwing that area of the image out of focus.