VolaileAmant, I believe we're saying the same thing.
When I said "darker" one, I was referring to the black and white bird with feathered legs and more black, as a light Brahma.
I have owned Columbia wyandottes and Delawares. Haven't owned Brahmas, but have friends who do, and have observed them in person on many occasions.
The OP had combined everyone's bred determinations into one comment, three birds in that comment were still questionable for the op. I was just lending my long distance opinion on the three left in question, and agreeing with your previous post, but my wording was unclear, apologies.
Edited to add, in case I misunderstood which bird was in question, the buff bird in these pictures has no visible black around the neck nor feathered legs, is why I said orpington...