Thank you, @shinyforest! I don't know if this design is similar to their style, but it's my interpretation/vision of the thumbnail cover.
Yes, the pressure can create a wall in my mind, stopping me from making a good, original idea.
But in this case I think it's better to go loose with the contest. I believe you can create a great design, more importantly because this is not for some specific client so we don't lose anything. Even if the design doesn't win, we gain experience. ;)