male chameleon

Hello, I was told by the pet shop He was any were from 6mo-12mo but He is bigger than I expected (He's My first Chameleon) what would You say estimation wise? is He full grown/Finished colouring? :confused: Here He is...

I just purchased a male Veiled Cham from a young gentleman that just purchased him from the local reptile show this past weekend.............. I brought him home and noticed he could barely stand. I put 40 dusted super worms in a dish and he sticks his tongue out above the worms and misses...