FINAL:
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Tried to spend a decent amount of time on thumbnails, found and made a bunch of references and took screenshots of the ingame model to help me. these were the final 4 thumbs. In hindsight, I should have spent more time on these as they're not as dynamic or interesting as they could have been.
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I asked for feedback from people from various art discord servers, most people preferred the top right and bottom left ones. I decided on the top right as I felt it would show more of his kit and I could show more of his cockiness rather than his aggression.
I then made some color comps, these being 2 of the 3 or 4 i tried:
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I then thought that I should push the pose more, so I came up with this
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Well, after that quick block in I decided to figure things out with some linework
From here it's str8 rendering all the way, making a few changes in the process.