Optimus Prime from Transformers as the Ghost of Christmas Past
Twilight Sparkle from My Little Pony/Equestria Girls as the Ghost of Christmas Present
Big Bad from Hanazuki: Full of Treasures as the Ghost of Christmas Yet to Come

Transformers, My Little Pony, Equestria Girls and Hanazuki: Full of Treasures (c) Hasbro
A Christmas Carol (c) Charles Dickens
Idea and artwork (c) me