I didn't think about the fact that Ten would have thought he was regenerating for the last time, but it does work out perfectly in retrospect, & I feel much more sympathetic toward him now. This was a really nice exploration of his feelings- it felt sad & meditative instead of just angsty. I think you got Cameca just right too- how she'd know he was connected with the Doctor, somehow. I love her character & I always like to think the Doctor saw her again, even just once, for a conversation like this. Really lovely piece. :)