Draw and render Female back figure nude, behind or butts grey scale value

Draw and render Female back figure nude, behind or butts grey scale value. I am working on another up coming full-length feature tutorial. Here is another part of the new feature tutorial (Female Manga Fusion II). This one will be a combination of realist and stylize with many female anatomical sketches videos, drawing videos, and rendering (or painting) videos.

Here is a gray scale sketch of female back figure nude:


Drawing Software & Tools I used and recommended:
-Genius MousePen 6x8
-Wacom Intuos3 6X8 Pen Tablet
-Bamboo (Small) Pen Tablet (new from Wacom!) Economy for everyone.
Softwares:
-Gimp (Free Download)
-Adobe Photoshop CS2 (Professional software)
*You can just use pencil, paper, markers on this one...just practice rendering.

FEATURE TUTORIAL:






New tutorials:
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-Manga tutorial, draw and render female knight
-Figure tutorial, Drawing Man body or Male torso
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Thanks for all overwhelming support and e-mails guys!!!

** If you have any basic questions or specific please looked up Q/A section (under the blog menu on the right side). Most of the time your questions has already been answered in Q/A.

Have a GREAT DAY!