I have to admit, Katakuri and King have some huge parallels right here with their face reveal and if we look at their characteristics, they're like two sides of the same coin:
King: Brute, uses everything to win his battles, no kind of honor at all.
Katakuri: Has a clear fighting style, is honorable in battles, doesn't allow interferences in 1vs1 battles.
It is very interesting how Oda portrayed those two so far. Like, Katakuri portrays the sun while King the moon - Oda loves those references as you guys can see on several hints which this Ohara guy posted on YT. Well, after all, they're the first mates of two Yonkos for a reason.
I'm really looking forward to see more from King. Please no "next chapter King will be defeated BS" since it's really beginning to be very interesting between King and Zoro. Also, King tanking Ultra Tiger Slash is some massive durability feat.