DC characters

Here are some DC comics characters that I decided to draw in my own style, very late at night and in a hurry to get these characters out of my head.
I played around with the designs of some of them, but there's a few that I did as closely as I could without having to leave my bed and find pictures of these people.
Anyone who can name all these characters gets half a birthday cake! (the half that's NOT eaten yet, in fact!)