The Art of Holding Up

It happens that even a cold can sometimes be quite inspiring. This drawing was almost finished for a month already, but I needed one more detail to bring it all together. And so yesterday while sitting with a cup of tea, I finally got the idea for the neck area.
Originally this was supposed to be just a "quick test" for a non-textured paper. Instead, I spent almost 20 hours (more or less) on this little drawing.. Oh well, at least now it's finished.

Thanks for looking!

Tools:
*B and 2B lead mech pencils (0,5 and 0,7 mm lead)
*Some very simple paper (A4, but the drawing is 10x19 cm size)
*Kneadable eraser
*Soft eraser
*Some cotton wool for blending