As soon as I saw your OC and its cutiemark, the first thing it reminded me of was Legend of Zelda: Wind Waker. reasons are cause the predominate color of the game is blue, like your oc, and the cutiemark seemed like the three pieces of the triforce, and lastly, the clouds in the game looks like the second part of the cutiemark.
So, my suggestion is Wind Waker. I choose this name cause it also fits the profile of characteristics. She is shy, but as soon as she get the "wind" underneath her wings, she "awakons" into a sense of freedom of the sky.