The JokerManiac Game Designer asked to have a character, a pinup, to be used in the game and for the logo. A sexy girl posed in a "J" shape to create the word "Joker" was the original idea.
Here some draft and concept:
I was looking for something related more to country style and old west mood instead of the classic casino/gambling feeling. Nothing too realistic neither too childish. So I was pretty satisfied with the following approach.
So this was a first attempt to the logo
And following the first release, where I decided to change something