You have three additional points to spend on your Ability score. 

As such they have been seen at all humanoid racial ages, but in reality the Labyrinth is nearly immortal, and the Avatars are usually created a few days before adventuring. On this note, if the Avatar Dies the body and anything created by the Labyrinth will convert to energy and head back to it's source.  Fortunately, the Avatar  can be recreated by the Labyrinth, however it would take time to return to a party and the Labyrinth might choose a new race gender or age to represent itself. Also,  the DM may choose to lower a few levels. 

Living Labyrinths tend towards lawful neutral, however some are Lawful Evil, while others are Lawful Good, however their Avatars are a means to see the world an experience life from the perspective of a mortal. So they can be anything. 

Your size is Medium. To set your height and weight randomly, start with rolling a size modifier:

Size modifier = 2d4

Height = 5 feet + 1 inch + your size modifier in inches

Weight in pounds = 115 + (2d4 × your size modifier)

Your base walking speed is 30 feet. 

You can speak, read, and write Common

Instead of Sleep, like elves they meditate, this meditation allows the experiences of the day to sync up with their dungeon core.

Traveling to other worlds and planes of existence causes them to take longer to make decisions and to fully sync their experiences for a day. 

4-hour meditation