Bearded dragon genetics are an entirely different monster. I've had dragons longer than anything else, and I still don't know too much on it. Most of the color 'morphs' are more of line. I haven't seen any real German Giants, however hypomelanistic, translucent, and leather/silkbacks are the three main ones that I know of to be true morphs.

Regardless, your dragon is very nice looking.

Last random thought, try looking up sandfires, or red citrus, that might be what they would call yours.