Leon looks great!!
Hi!
It's amazing how much my 8 month old male Veil looks like Leon in coloring!!
My Male has that incomplete shedding line on his casque that has been there for several weeks.
So long as your Chameleon is alert and eating, drinking, and pooping normally, it's all part of its growth where they can get incomplete shedding lines. You took a great pic of Leon! He looks like he is "king of his turf" and looks extremely healthy and alert so I wouldn't be concerned.
Suggestions: Put him underneath your kitchen faucet and use a gentle stream of warm water to wet his entire body. Might help in accelerating the shedding process or mist him with warms water more frequently. My Veil is very used to being placed in my kitchen sink and having warm water drizzled all over his body which helps in softening his shedding skin/lines and/or when the weather is hot and humidy is low.
Christine