I think his pigment could be better personally. Needs more of a mask. There is much too much fading going on in the breed presently, and I'm seeing dogs that resemble oddly temperamented Goldens as opposed to properly pigmented shepherds.
That said, his pigment is still better than lots of GSDs I see these days (the blankets and bi colors don't count...most of the fading we see is in the saddled dogs).
I think his head is a bit bitchy, and could be broader through the muzzle.
Color is gorgeous, love, love, LOVE his bone, and his angulation front and rear is wonderful. Very balanced. Wither is a bit flat, croup short and steep. I'd actually like to see a slightly higher tail set (how often do you hear that xD).
Ear set is nice, nice short hocks. Tuck up is nice, but slightly over exaggerated IMO.
He's a handsome bugger! Reminds me a lot of my Strauss actually, lol.