What cosplay should I go with?

My friends are going as characters from Black Butler so I thought maybe I should go as Gangster Sebastian cause I don't have his costume, but I hav a black wig. I also have a maid outfit so I could go as Fem Sebastian. But it's going to be hot and idk if anyone will recognize who I'm going as. Also I have a full Saya cosplay from blood+ that I made. What should I go with?