Okay, I watched the second one over again and I think you're right, like maybe putting her head up like that was her way of correcting her balance on that flimsy box. The first video still seems kind of jerky to me but maybe I'm imagining it...
She's actually a mahogany as far as I know, though I've had someone ask before if she was green pastel. She did come from a green pastel mahogany x normal pairing and honestly I had trouble distinguishing her from her siblings in the pictures lol