Seeking truths and possessions
Sleuths seek to get information or steal possessions
Peering out with envy
Green eyes. Envy is traditionally associated with green.
Standing below your own kin
Alysanne, her twin, is one of the World's Edge leaders.
Guarded even in memory
Her profile mentions how she is guarded several times, even in the past.
Sleeping under the moon
Reference to World's Edge, the herdland of the Goddess of the Moon.
Child of earth and sky
Profile reference: "The twins were raised as a mix of earth and sky". Parents were a pegasus and her father had earth magic.
Singing of bravery and protection
Her profile describes her as brave and protective.
And all that is black and white
She is black and white.