Please note: if Sherlock actually looked the way he does in the second-to-last image, billions upon billions of brains and ovaries would explode from the sheer adorableness. Kudos to Greg for handling this shit like a big boy, unlike John (in Sherlock's body (XD)) who I can only seem to describe as a total 'uke'*.
*I am sorry, headcanon BAMFsoldier!John; so, so sorry.