I love this artwork and would like to understand how it was created:
Some looks hand-drawn. For example the shading on the bottom of the bird and in the moon's craters. Some looks like vector artwork. For example the sun's shape and the clouds.
Perhaps there's a way to do the "hand-drawn charcoal-like" shading in Photoshop. Using this for the shading and Illustrator for the shapes is my best guess. Any thoughts on how this artwork was created?