This is my FBCM rooster, Loki. In some ways, I’d say yours is actually better than him, but he has correct some of the problems in yours.
His wing is 100% correct: see the clear iridescent black wing bar in between the secondaries and deep red shoulder.
His legs are pink-white with grey shading. This is how they should be. They should not be all slate grey, yellow or greenish. They are also correctly feathered. The feathers are short and down the outside of the leg, ending sparsely on the outside toe. Anything more is too much, none and you have the English standard (although Black Copper is not a recognised pattern for our standard).
Notice how is hackles and saddle is much more vibrant than yours. The deepest red is reserved for the shoulder, the rest should be orange, lustrous copper. This is something many breeders get wrong: they breed for the darkest colour and not the boldest colour. If I remember correct,
@wrathsfarm ‘s roo Kong has an even bolder colour.
A few problems with mine are in his tail: it is too big and messy, and held too high (this is called squirrel tail). Yours is better here because the angle is closer to the correct 45 degrees from the back. The white in the tail is also a problem, it often increases with age but is something that needs to be bred out. It’s a shame
@Chooks man is inactive because he has some excellent type birds.
Like I say, Loki isn’t perfect either, but I’ve included him to show you the differences between a bird bred without a good understanding of the breed standard and one bred with the breed standard in mind. There are just a few problems which are a matter of annoying genetics, but these can be fixed by crossing to the right hen.