The world in black and white illustrations

In this illustration series my main aim is to transmit the feelings that the images can incur to the viewer, using only monochromatic tones within the grayscale.

For this series, I had in mind how could I create stories with illustrations in black and white. I would have to be able to stress the main element by playing with the light to generate the necessary contrast and therefore guide the viewer to the main point of focus. The mood would have to be controlled by the tones of grey, black and white.