,,Going as a leader, dying as a hero" and ,,Not even immortals can scape death forever"- Celestia, my storyline ( in other battle obviously and not in Equestra ) Leaving that aside, very good vector and I like it a lot ( you're very good at this btw ) tho she would look better if she also had a helmet.
What would you want? Her in full plate armour from head to hoof with a Bassinet helmet? Remember she is immortal and would need to fly if needs be. Having too much weight on her body could be a hindrance to her