hopefully its just the pic, but you got some bad skin bro. Back isn't too bad, keep hittin it.
Yeah... Your back (by the pic) looks like my biker bro that went through the front windshield of a truck with his back.. his back was still spiting out glass a year later.
otherwise... good base, keep hittin it...chins,deads,chins,deads,chins,deads oh and then.... chins,deads...