We'll begin this process by sketching out lines of action and simple shapes to nail down the pose of our pinup. Following this we'll sketch additional features over our pose to establish the over design of our fantasy pinup. Next we'll begin blocking some base colors for our pinup's skin and overall attire.

From here we'll spend several lessons blending and refining the various attributes of our fantasy styled pinup starting with her skin and then her overall attire. Along the way we'll discuss mixing color palettes, integrating additional colors from your environment, and brush settings.

Finally, we'll finish by making some final edits and touch-ups to our fantasy styled pinup by using some effective tools in Photoshop.

More info - http://www.digitaltutors.com/tutorial/1330-Illustrating-a-Fantasy-Pinup-In-Photoshop