If I'm our local expert than we are in trouble!
I will do my best though. I do have some good examples to work from thanks to Foley. Your SLW in the front there has the nicest lacing I have seen in hatchery stock for sure. Their hocks and feet are yellow, and they are getting nice and round. How old are they? SLW take 18 months to fully mature. You also have lacing on the leg feathers and my hatchery stock didn't even have that.
I can't tell on the picture angle, but you also want to watch for a pinched tail. When viewing the tail from behind, it should resemble the shape of a tee pee. Wide and open at the base with a gentle taper to the top. When viewed in profile, the tail should not be overly rounded at the top like the "bunny tail" on a cochin.