Well... This is not really a contest : the only price is helping a free compilation & share your vision of that volume of Necktar 2017.
And there will be no podium with a winner and all that sick competition things cause all artworks will be available as alternatives covers.
It could be mixed media, draw, paint, photo, infography, movie, animated picture, ascII, mere words and more and more.
The set of themes of Necktar 2017 volume 3 is Macro / Perception / Micro : Evolution.
It could help to have a view on the previous covers.

If you want to take part you can send your artwork to araknodaedalus@gmail.com or let the link for reach it in a comment.
Don't forget to indicate the free licence you wanna use, for example cc-sa-noncommercial, cc-nd-noncommercial, c reaction.

If it could help, here are three raw sketches about it. I may try to do something animated using this idea, but feel free to be free.

mininsketch1.jpg mininsketch2.jpg

If someone is interesting for create something for the whole Necktar 2017 compilation here is the whole list of the set of themes.