This is my take on what i would imagine a DC comics story in the vain  of the recent DC movie  "suicide Squad" done as an audio drama production taking the overall design structure from the covers created by the audio drama company Big Finish Productions. You can see one of their covers as an example below. 

What i did in order to create the cover was that i had to source all of the different images separately and then create the different parts like the banner, logo ECT and then combine them together in order to create the finished poster/cover that you see above. Below you can see what i have dubbed the banner which contains the picture of the joker and acts as a base for the rest of the main information like the logo and the title to be put on at a later time.

I also did an alternative layout of the cover itself in order to make it more unique when compared to the one above which is based off of the big finish covers, with this one i made it so i could show more of the cover itself and also so you can get a better look at the logo its self which has now taken centre stage.