I thought Lucas was one of the staff of the museum when I saw him sit in a black chair in the corner, chatting with a visitor. 

He studies animation and often comes to the British Museum to do some sketches.  He said it was relaxing for him. It was not his first time to be mistaken for a staff member - guess his usual black outfit helps.  

I captured a few moments of him immersed in his black and white world, as still as his drawings.