I'm really intrigued by the concept of the Doctor (and the Master)'s academy days back on home sweet Gallifrey, and I'm a sucker for drawing characters as babies/children, ahhahaa fdfjsgahfhg, so here's a bitty Theta trying on his dad's Senate robes or something.
OR, if you subscribe to the loom theory, an older cousin's robes. Except then he wouldn't even be a child, in which case... whatever
why is the canon of this show so goddamn nebulous
Anyway, I tried to kind of make him look like William Hartnell as a kid, because MOST of the theories suggest that that was the Doc's first regeneration.
Clearly not a lot changed when he became the Doctor, though. Still tiny and self-righteous.