Actually the whole thing has been fade-blurred, but there's a slight glowing effect behind my tori that can be obtained by duplicating a copy of the tori, smudge(custom smudge settings) the bottom copy and set it to linear dodge, I then smudge away some edges of the tori to flow with the light direction (I added lighting effects before hand, most noticeably the left pec.
So yes, yes I did.