Feathers curling?

[HeathBar28]

My O Shamo rooster is going through his first molt, 5 to 6 months old, and some of the feathers are curled. Most are normal but if something is wrong I want to catch it right away. He is on a 17% all flock pellet feed. Pictures attached. Pics of full body so you see how most of his feathers look

 

[Wyorp Rock]

Does he have access to a dust bathing area?

Not sure what causes the curling, hard to tell, perhaps not all of the keratin sheath has come off the feather.
Does he seem to feel o.k.?

@MysteryChicken may want to chime in here.

 

[MysteryChicken]

Curling is a common yet natural feature among hard feathered Gamefowl.

Different angle.