It's probably his buggy eyes. His head looks like it's a little too narrow for how wideset his eyes are.
I think it's his face... kind of reminds me of a mali. Maybe it's the eyes.
I think that when he's older he'll look better, but he's already neutered, so he probably won't have that masculinity associated with male GSDs.
I think he's just at that funny puppy stage right now.
He got him from a BYB. The mom's owners wanted to breed her before they 'took away her ability to have puppies.'
His parents are a WGSD and a K-9 GSD.