Guess this is a semi official design for Peace, Life's Death's and Shi's new sister

Awwww
So smol

Yep, smaller than Life

She is the only one that grows up at a normal rate

World peace baby

Yes, she symbolises peace, she is a toddler so she doesn't have any powers yet, but soon she'll have a peaceful aura around her

y e s

*Death picks her up and holds her*

Death: ...
She's adorable.

*Peace smiles like a baby would do*