Maybe a little more detail in the legs but overall it looks good!
Answer: 1 and 3
Explanation:
you shouldnt change something about the picture that would spread fake media about the condition of the athlete, removing the brace or changing his physique wouldn't be true to his actual conditon.
Traditional Chinese artists used ink sticks.
Maybe a dragon, a state/country/continent/etc., and a crumbled piece of paper, lol
Answer:
I think Natural. sorry if I'm wrong
