Her costume gives her a strong, unrepressed image, a standard characteristic of femme fatales. She is stylish, arrogant, tough, intelligent, and a smoker - at this point she is the perfect femme fatale. However, her face being soft and friendly, rather than cunning and deceptive like most femme fatales, and the scattered blurry lights in the background suggest goodness and a broken/confused character. Both characters bodies are almost completely in shadow, whilst there faces are half in shadow; they are very similar characters There is a shot of the table in which we see a miniature bonzai plant, which represents mankind's urge to copy and control nature. .
As Tyrrel comes in we get a wide view of the room and him walking towards us, which may have some relevance as to the importance of Tyrrels" role, which is portrayed throughout the film as a creator or God. As he speaks, the light on the walls around him quivers like reflections from water which could enforce his role by suggesting his power/understanding is so great that the very walls tremble around him. Or perhaps it suggests that people have become too dependant on technology, and though Tyrrel stands confidently, the World around him is losing stability. He is wearing a very smart blue suit, with a white shirt and bow tie - implying sophistication and wealth, while his glasses magnify his eyes, enhancing upon nature. .
As Rachael introduces Tyrrel she walks out of the shot and he takes her place, which is an unusual way of bringing a character into the mise-en-scene. It shows the control that Tyrrel has over Rachael, as she gets talking to Deckard, setting the mood, introduces Tyrrel, and is then withdrawn without even being asked to. Rachael is an underling of Tyrrel and everything about her so far - the formal language, straight face, unemotional mannerisms - has suggested that she is a replicant, although the audience is in some confusion at this point.