I would love to see your picture too. There isn't much feedback or attempts on establishing this mutation here in the states that I can find. I will keep working with them thou, I have a ton of normal BH dilutes in the process though...
I can't help wondering how this mutation would interact with a red head colour. In theory the blue head colour should be a structural colour and thus should be expressed in combination with the red. One would assume this would imbue the head with a purplish sheen.
Could be quite stunning...