At least being a supernatural entity has its advantages. You save some serious money on clothes.

And in Celty's case, hats.

Possible except that her helmet isnt part of her shadows. Even when she does create a shadow helmet to would be conpletely black.

Impressive detail that she ain't hard plastic doll and actually has softness of skin - best observed on breasts and skindentation on "corset" model.
Well, when you make perfectly fitting clothes literally out of thin air that detail prone to be overlooked unless you look hard enough.