My favorite illustrator is NC Wyeth. I love how he made use of clouds to lead the eye around the image and draw attention to certain subjects. In this picture of Noah releasing the raven, I wanted the children to spot tiny Noah but also make sure they didn’t miss the Raven. While the front of the boat is almost like a giant pointing finger, it also blocks the line of motion between Noah and the Raven. The large bright cloud helps to draw attention to Noah but then lead the eye in the direction of the raven isolated against the blue sky.
While cloudless skies definitely have their place and purpose, carefully placed clouds can play an important role, not just to lead the eye but to add a dramatic touch or a splash of color for the children.
tools: Adobe Photoshop CS6, Wacom Cintiq 18sx