Peter Capaldi's first full day as the Doctor...

More than any other Doctor previous, it seems like there was no initial "sinking-in" period when Peter Capaldi made the transition from Matt Smith during "The Time of the Doctor" almost two weeks ago.  Maybe it had to do with how the Twelfth Doctor flashed into existence instantaneously before our eyes, rather than have a lengthy regeneration sequence.  One moment I was on the verge of tears watching Smith's beautiful departure, and then WHAM!! without warning it's Capaldi ranting about his kidneys and screaming "DO YOU HAPPEN TO KNOW HOW TO FLY THIS THING?!?"

 
It's not a pic of him yet after he picks what will become his signature look (in fact he's still wearing the clothes that Matt Smith's Eleventh Doctor was wearing) but the BBC has released a photo of Capaldi (along with Jenna Coleman) on his first day on the set for a Doctor Who story of his very own!

That must be the proverbially happiest kid on the planet right now.  Coleman is looking pretty excited too :-)