That's a nice mixed flock you have. Black Australorps are my favorite standard breed; very hardy, calm and gentle, and the best layers of the standard, brown egg laying breeds. Easter Eggers are my granddaughter's favorite. She loves the colored eggs. One thing I would advise is being careful of is your cockerel to pullet ratio, unless you plan to keep some of those roosters in separate pens all to themselves. The recommended ratio is 1 rooster for every 10 hens. With too many roosters in a flock you will end up with aggression, fights, injuries, and bitten, spurred, and over-bred and battered hens, and your birds won't be in any kind of condition for showing. Good luck with your flock.