The little one with the flamed Camelbak is my 7 year old, and the one with the blue helmet and tan Camelbak is my 10 year old.
The 7 year old is the one with the tricked out Hotrock.
The 10 year old is showing more interest in riding, and her bike needs new tires, and I may do some light upgrades, but she will be ready for a 26" bike soon though.
Two Dads and 6 kids at Southwestway Park mountainbiking - YouTube