Mrs. Hudson: It's a disgrace, sending your little brother into danger like that. Family is all we have in the end, Mycroft Holmes. Mycroft: Oh shut up, Mrs. Hudson. John and Sherlock: D: Sherlock Bbc, Sherlock Face, Drinks Games, Sherlock Shut Up John, Sherlock Mrs Hudson, Bbc Sherlock, Sherlock And Hudson, Bbcs Sherlock, Sherlock Holmes
I'm really interested by their body language in the pictures. In season 1, there's a lot of space between Benedict and Martin, and Martin has his arms crossed, signifying slight discomfort (though he could just be cold). Season 2, they're closer and have more open body language, showing they're more comfortable with each other. Season 3, they're in each other's intimate space (very close - touching), showing they're very close and comfortable with each other. I love it!
I love how John reassures Sherlock in the last one. He says of course Sherlock, you are my best friend. Because Sherlock doesn't quite believe anyone would care enough about him to call him their best friend. But John does.