I saw the original pic. That dog is no where near 121 lbs or 32" high. That door knob set is very low to the ground, measuring a normal door set would not yield the same measurements. That door set looked about 24" from the ground, very low. I'm not basing this off the dogs height at all - just based on normal door knob heights on doors.
That dog is a perfectly normal sized GSD, I'm really not sure why the big push to keep posting pics where he looks like a giant? It's great that he's normal sized. He'll live a longer, happier, healthier life because of it.