Hello Inlite,
i have some ideas that maybe could help you out
1.First of all i would change the camera angle and the warriors pose. Cause atm it seems kinda frozen, more than a statue. So maybe a more dynamic camera angle and a striking pose. something like the image bellow
2.Secondly about the figure, to hide the skin you could add some armor plates
3.Maybe some motion blur on the "claw?" and focus on the warrior.
I guess thats all i though of for the main character and his weapon
