I think he looks pretty good. How old is he? The back looks good. No curves or saddles shape. Just a straight downward sloping back as it should be. the tail feathers look wide and full. I don't see sickle feathers yet which is why I ask on the age. he doesn't any positive white on his feathers either which is good, but it usually comes in when the fast growing sickle feathers do. His breast is broad and full. The wattles and comb serrations look good. His has a full crest. There are notches on the back of the blade of the comb which are minor thing but an improvement would be not notches on the blade. There is a slight wave to his comb, but it looks really good to be given the size of his crest. The wings are help close the body and tucked up high which shows good vigor. all of this colors look correct. Nice bird.
Ya...it takes a lot of photos to get to where you understand the standard. You might enjoy reading back through the Legbar Working Group starting at post# 3,743 on June 22, 2018. We had a on-line group that went over the SOP using photos of legbars and other breeds to show what was desirable and undesirable for each point listed in the standard.
https://www.backyardchickens.com/content/type/61/id/5028575/width/350/height/700.
