Shanelle is dark and pretty with light blue eyes.
Shanelle is not very strong in the One Power. Her level of strength is described by "The Wheel of Time Companion" as 32(20) which is a middle/low level in Aes Sedai hierarchy. With this level of strength she is unable to open alone a suitable gateway to Travel.
Being a Yellow sister means that Shanelle has some abilities in the Healing waves.
She has allied herself with the Salidar Aes Sedai.
Shanelle suggested that a smooth touch on the Healing would be better.