this seems quite different from the one posted on twitter when it comes to the detailing, but this applies to both.
I guess my immediate concern is that you can'st see how the arms fit into the sleeves (cape?) too well, though. Feels like they're outright missing since where they'd normally hang there's kind of a void of volume or detail. a good example of this is along the waist, where his right arm would probably overlap a bit or distort the shape of the cape/sleeve some to show it's there.
it's very much an issue that could be solved through animations though, as it does create a clean design and a strong silhouette that would do wonders for memorability.