The color seems right but the pattern is odd; very reduced to be a cinnamon. It almost looks like a cinnamon-colored butter. Lithiums don't look like that either, though. Do you know anything about the parents or breeder? I almost wonder if it's something crazy like cinnamon het. Daddy. He sure is handsome!

My uneducated guess is not (just) cinnamon, but not nothing, either.