I do not know much about conformation either, nor do I think my dog is the ideal, but here are some stacked/movement pictures and critiques to help you out. I always enjoy reading critiques and looking back at the dog to try and see what the experts see.
Critique courtesy of qbchottu
Nicely pigmented male with great masculine features. Good solid bone with (what looks to be) dark eyes. Normal withers and ok topline. Croup is steep and there is a slight break with the topline there. Nice front angulation and ok rear angulation. I think he is a bit overstretched in the rear which gives him a slightly hocky look so I would try to minimize that next time. Good muscle, but I like my dogs very thin and ribby so I think his structure/definition would show better with a couple less pounds.
A more recent stack (lost weight, got in shape, appears more alert, and was recently groomed down)
A silly picture, but it shows him from the front and his earset
Gaiting a little too enthusiastically
Courtesy of Christine/BlackthornGSD
He looks still a bit young in the pictures--like he could still mature a bit more, although at 3.5, he should be pretty much done growing. Nevertheless, he is a very nicely put together boy.
From Robin/robinhuerta (the close coat was a result of me going overboard with the undercoat rake
He has a very nice, balanced body structure.
More coat would even make him look better.......nice dog...congrats!
Slightly stretched male with high withers, OK topline, good position of a croup that coule be a little bit longer. Very good angulaton in front with a nice long upper arm and very good angulation in the rear. Good bone, pasterns and feet though he looks like he toes out a bit on the near front. Good color though his tan could be a bit richer. I would like to see stronger secondary sex characteristics. My biggest criticism is that he is long (stretched).
In movement he appears to have tremendous drive off the rear and reach in front. He also looks balanced. He does hunch up a bit during movement which explains, in my mind, what I see in his topline (and why I only gave it an OK).
The connection between his withers and back just looks off to me. Don't know how to describe it. He has a high withers, but then he drops down quite a bit into the topline. When he moves, he moves a bit more like a dog with flat withers. I don't really know how to describe what I am seeing and, of course, what I am seeing is based on a shot in time.
Two additional gaiting pictures from the past - a more easy going, "casual" gait