Definitely black, if you choose white there'd be too much of it with the bandages being white too.
I'd say do a grey black instead of a blue black if you really want to differentiate from that Momiji design. Though tbh, you're both going for the same theme so it's no real surprise they look alike. I wouldn't say you're copying one another.
True....this is technically just an extension ofmy older design, while there's is obviously jotaro. And since I got rid of the more jotaro elements no real similarity beyond "jacket".
But I can only attempt to color this once, which is the issue. I don't have copies this time.
Now then, if black jacket, I need to decide detail colors. Leaving headband white, to match foot wraps and chest wraps. Hands though...not sure what colors gloves and forearm wraps should be....or if I should color the interior of the jacket. I could go back and have yellow jacket interior with red arm wraps and jacket letters...but not sure if white bandages would work with that.
Obviously didn't get it in on the fifth so trying to finish this within the morning. I've accepted it'll look horrible lol.