A 6 year old boy on good foods goes to sleep about 9 PM and up and at it by 7 am and should bounce and jump all day long.
He looks plent fat to me.
His ear shows great strength. His jaw is good size for the country he was born to. His nose and eyes are GREAT! His teeth look very white and his lips full of circulation; I think your just BRAGGING! and thats great; this forum likes such pictures.