After alot of discussion the ES Team agreed to disqualify NikosDEAD for plagiarism.
It got pointed that his entry holds some resemblance to the anime character "araragi koyomi".
After a quick research of only 1 minute we found the following picture:

When overlaying his entry and this picture the following results occur:


Now the similiarities are undeniable and are even bigger when compared to the first WIP he posted on his clans discord:

Notice that especially the hair is closer in this one.
He posted a few WIPs afterwards that documented minor changes which makes it even stranger that this far in is his first shared WIP.

Therefore the conclusion is that Nikos did not create his work from scratch, but rather paint over an existing image.
By him doing this he bypassed the need to draw proportions, hair, facial structure, posing and muscle structure, which is highly unfair to all the other contestants.