Well, there is not a perfect specimen of any breed or variety, and that is what we work for, as breeders--not perfection, as that is in the eye of the Judge, but CLOSE and "very good to our eyes".
Each Variety (color/pattern) you listed has a Standard description, some specific to the breed, some are slightly different, with the same name, but a different breed (Speckled Sussex, for example. Each description is fairly long for each variety.. Each of the breeds you list has a written Standard description of it's Type. Males and Females, on which the variety is displayed. .
You will find the descriptions in the Standard of Perfection book by the American Poultry Association. Google their website, but you must see the book for the information, along with visiting Shows and visually critiquing the birds you see. Great Fun. A great activity and can lead to great birds and satisfying projects. While I like ALL BREEDS, I chose just one, to do my best to obtain good ones, then produce their "best" individuals, -- my own ""line" of birds that can produce the best for others who take time to study them. Added another variety as I learned the BREED and just one variety, and then another, but space,time and expense gets complicated,if you try to do too many. KEEP RECORD of every egg hatched, every bird raised and who you sold birds to (which birds, not just numbers). You might want some back, if you have losses of your breeding stock. Good luck