User blog comment:FairyRaven/Fairy Tail Chapter 435 & 436: The Cry of Victory & Memoirs, Review and Commentary/@comment-24499036-20150518110852/@comment-9595671-20150518113637

I think that's Rogue's shadow actually, otherwise the shadow would have changed shape to show the hug.

Plus I'm pretty sure that's Sting on the right due to the color of his pants.