Lied vom Tod
The boots are from
Exalted Arc. The lavender hair I think might be from
Minerva's Lace. Not sure about anything else but I hope that helps a bit.
Thanks, both of you! It looks like -maybe- the eyes could be the ones from Exalted Arc too. They have the same shadowed look to them at least. And yes, Lied vom Tod, I just put on my Sainte Ciel and tried on Minerva's hair. It's that hair. So thank you for finding that.
Now I'm down to only needing to know the horns.