I do see some lacing in the large feathers on the back area near the tail and yes as far as my limited experience, lacing on Polish does improve as they grow. I had a buff laced who just got better and better and now I have a hatchery LF gold laced who seems to be improving with age. He is only three months old, bearded and very sweet.
I think that your buff laced is very nice and has a good crest so far.
I think that your buff laced is very nice and has a good crest so far.