She may watch for a small while: the spell lasts for ten minutes in total as long as he maintains concentration. This was something he did just to practice fine maneuvering of the rocks, as he's had issue in the past with judging distance. A bit ironic for an archer, yes? He eventually lets the rocks come to rest on the ground gently and turns to leave, stopping as he notices that Padmé had stopped to wait for him. He folded his talons together before him.

"Hello. I hope my little show didn't startle you?" He tilted his head a little bit. She didn't seem scared, but he wasn't sure why she was standing around.