I think maturity is the difference in some of these pictures. Youngsters can fill out alot, even in more than a year's worth of growing. As they say, compare apples to apples. The best thing is to enjoy your birds. If you have a particular breed you are concentrating on, trying to develop a high quality flock per Standard, then sure, refer to the standard; but if you are just wanting pretty, healthy birds, dont worry too much about it. Enjoy them! I have all qualities here on the scale and I love them all. I will concentrate closely on my new Delaware project and cull when I need to to meet the Standard, mainly because they are endangered and hatcheries are outcrossing to Columbian Rocks, not a good thing at all. But my others? Not so much. Yes, they are pretty good, but not perfect. Some have flaws and I know what they are and may get better stock to interbreed with them in the future, but I wont wring all the enjoyment out by worrying too much. Your birds are pretty! Enjoy!