Erin's a lovely name, I don't know why you didn't give it when I introduced myself. It's always better to have a name for a thing or a person, it's easier to describe. It would be hard to describe colors without their names and people are far more complicated. 'Gracewater, E' could be anyone, but 'Erin Gracewater' is certainly you.
But no, I like the scheme. And if I can help, I will. I don't know why anonymous people wish to argue it with you -- perhaps they're anonymous because your benefactor is? It's always best to dress the same for a party and taking one's cue from the host is easiest. But I hardly think those opinions are going to matter much if they are anonymous.