I did this cover for someone and the mockup is posted in my graphic shop, but I felt the need to post it here as well because I was so happy with how it turned out I wanted to share it. The request was for Jungkook in the foreground, injured, and with zombies lurking behind him. 

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A lot went into making him appear injured, from adjustment layers, to multiple layers put together to create the final look. It turned out pretty darn good in the end.