He’ll definitely have buff on him. The quality of the bird may not be affect as long as the parents are good quality (like good body structure, feathered feet, comb ect. From what I can see in your pics they look to be somewhat good quality) The only standard affect will be the color. The chick and the parents are not a recognized color at least in the USA I’m not sure what your Brahma recognize colors are but I’d still say that the chick won’t be up to standard based on the colors
I’ll tag some people that may be able to tell you more on color
@NatJ @Amer @nicalandia