Mad King, Mother Harlot (FGO)
Madnessofthespirit's post made an epic suggestion for Cu Alter to wear the Mother Harlot outfit, which is a really cool idea.
I too wished to see this outfit materialise, I think Cu Alter would look awesome in that outfit. So I gave it a go myself.
Wada Arco's artwork is very intricate and detailed, which was very challenging. I respect her style even more after this attempt.