Somehow never seen this before. Interesting to see 10th's immaturity and mania teasing through even in his first moments. Right off the bat, he doesn't want to stare directly at the weight of what's just happened. Despite 9th's growth, he's still not ready to face big scary things like his own role in ending the the Last Great Time War.

Interesting to see his first moments, in which he acts like regeneration is no big deal, when we know that his last moments will involve not wanting to go.