howdy, you have all the traits......the yellow in the feet bothers me but , I would like to see more pics of him standing on flat ground to see the shape of his back and the stance of his tail. What you want for show and breeding is a nice gradual "U" shaped back with a tail that does not stand up beyond 40 degrees.
A pic of his comb strait on looking at his face to see the straitness of his comb also looking for any side sprigs.
What I teach my 4-H poultry project kids is 1. feeling for the width of the back which will tell you the health of the bird. You want to run your hand down the bird's back with your thumb on one side of the bird and your forefinger on the other side. If your bird's back is very wide and your hand is stretched out, you have a good healthy bird. On the other side of the coin, if your thumb and fore finger are close together then your bird is not well or conditioned.
2. place your chicken's back aganst your chest or stomach with one hand, take the other hand and feel the keel or breast bone for straitness........strait is good, crooked is bad. You want no bad or negative traits to end up in your future flocks and judges will take points off for defects at a show.
wash those feet and see if the yellow is just some dirt, you want pinkish white. Yellow feet or the traces of yellow can be Jersey Giant or mixed breeding.
check for straitness of toes, crooked toes will also show up in the flock later on.
Many folks just enjoy having chickens no matter what they are or have, not caring about any kind of standard, just having them for the sheer pleasure of poultry antics, eggs and meat.
Those who are a little more serious about the "Fancy" tend to follow the standard set up by the American Poultry Association.
Anyone can own birds, not everyone can own great birds! That is all about dedication to your flock and the quality that you strive to obtain.
looking forward to some more pics! I hope the info was helpful