From poking around online I found that ODs often have the train tracks marker seen in some het. pieds, and they also seem to have a brown out line/fade similar to enchis, but a little more subtle. Someone had chimed in that they are brighter orange near their tails. Their patterns are reduced but not as sharp looking as some reduced pattern morphs like blade.
That said, I've never owned or bred ODs, this is just a regurgitation of some basic Google-fu so don't put any money on the info I shared. I think OzzyBoids is the origin of the OD, why don't you ask him and get info directly from the source, then be a hero and report the findings here for us?