That's awesome. I wonder why you did not draw Whitebeard's coat in white though : it reminds me Roger.
But indeed, white coat might of been best, I have a bad habit of not making things like in the manga, but it feels more free like that
nice color composition. looks mystic and minatory. red coat is better, underlines the situation.
Interesting choice of colours. I like the background pattern a lot.
White coat would've made it even more awesome. Keep it up!