Is this chick actually what they claimed?

(they’re 3 weeks will be 4 weeks next week)

1st two pics are of what I was told was a midnight Majesty Maren, At first i thought this was a rooster because of the white, but from why i understand they shouldn’t have yellow legs? this one has bright yellow legs where the one in the last two pics does not. the one in the second two pics also has feathering starting on the legs. (if you think the one in the last two pics is a roo let me know also, he’s grown the same as all the others, doesn’t bother any of them, grew feathers at the same time etc) i’m confused if this was a mix up or what! Any insight welcomed!