Step-by-step: Compose a rainy environment
I start by tackling the background that, although relatively simple, is crucial for determining my character’s environment. In this case it’s a seascape, which is stormy, dark, grey and foggy. When I’m satisfied with my background, I select the flat colours for my character that match the mood of the scene. I start with the rendering. I choose a cold and diffuse ambient light that’s appropriate for the environment. I lay down shadows with a warmer colour, then select a Hard brush and simulate the appearance of wet skin. With a Soft brush I paint a halo of mist on the head, arms and shoulders and small droplets around it. Next, I add the rain on a new layer. I choose a light colour and create a regular dotted surface. Then I go to Filter> Blur>Motion Blur and, depending on the type of rain that I want to show, I choose the parameters. If the result is too static then I can add some drops at different angles, to make the image more realistic.