I love the maniacally gleeful look in his eyes in the second pic - it's almost like David is officially saying, "This is it I'm the Doctor! And I'm a fighting Doctor! This is going to be AWESOME!" and the accent he uses when he says "fightin' hand!
This is why I love Doctor Who. The moments when no matter who you are or what you think of yourself, the Doctor tells you that you're important.<<<I love how one of the main messages in this show is, everything is important, and that includes you.
Quite possibly my favorite scene with Doctor Donna =) I love her because for the first time 10 can have a companion who isn't falling in love with him. It took me a while to get over Rose Tyler but I really loved Donna Noble