I'm new to this thread, but I don't think anyone was trying a personal attack on you TM and I'm sorry if you felt that way.
However, from what I have SEEN (I'm far from an expert) the Ayam Cemani's didn't have yellow on the legs and beak like that (not talking about feathers).
I was under the impression a TRUE pure bred Ayam Cemani was all black (from tongue to toes) and show stock (not saying this is what you said you were selling) had to have a full black comb and wattles, not mulberry.
Please don't take this as me trying to be nasty to you or anything, I'm only looking to learn about the breed. I don't have one, though I wish I did, and want to know all I can about them.
I think your bird pictured is beautiful!