I think even a slight smirk would do wonders for bringing life into the sculpt. I also hope that the coat will have the red piping/stripe along the zip area, and that slight purple tinge to the overall colour (at least judging against the few pics seen so far, but maybe that is more lighting than material), and especially that the pants will be a much darker blue than the colour shown on the prototype (unless she also wears a lighter coloured pair, just haven't seen any evidence of that personally, so can only go by what little I've seen so far). Switch out t-shirt would be nice, too, ala the Nintb Doctor, for the exclusive, as we've seen her wearing two different coloured versions of that shirt.
As for the show itself, I'm not so much worried about Jodie Whittaker's casting as I am about Chris Chibnall's writing, but we'll see.