Botanical Scratchboard Illustration of Grapefruit

Time-lapse video showing the process of rendering by hand a grapefruit in scratchboard.
Note 1: I try to show my work process as accurately as possible. However, I do take some liberties with the editing of the videos. For instance, almost all my videos use time lapse to speed up the process. I would like to show an entire drawing in real time, but even my simplest drawings can take a full day--major drawings can take one to two weeks. No one wants to watch me draw for two weeks. Also, some of my edits are just for my own enjoyment. Video is a hobby for me, and I like to experiment.
Note 2: I call my drawing medium scratchboard, and it is. However, a more accurate description of my technique would be "pen and ink on white scratchboard." I work on white scratchboard, and I draw with pen and ink the parts that have a value of 50 percent gray or less. For areas that are 50 percent gray or darker, I block in with solid black ink and scratch in white lines for detail.
Note 3: I am showing how I work. However, although I have been an illustrator for over 35 years, there may be times when I am doing it wrong or not doing it in the best way.
Note 4: I am a commercial artist--not a fine artist. My work is meant to be printed. My clients don't usually care what my work would look like hanging on a wall. They only care what it looks like when printed in their ad, book, billboard, package, etc. Almost all the drawings in my videos have been used commercially.
Materials I use: Ampersand Claybord, white, 1/8 inch thick; Koh-i-noor Rapidograph pens (sizes I use most--.000, .00, .0); Micron pens; Higgins Black Magic ink or Koh-i-noor ink; Scratch-Art knives.
Illustration and video by Michael Halbert:
www.inkart.com/
www.behance.net...
Music from incompetech:
Industrial Cinematic
incompetech.com/

[@arsvirum1735]

I really like your videos, I would like maybe in the future it would be nice if you could make a tutorial on how to maintain the fountain pens

[@mclaren1141]

I would love to see 1 hour videos at least! I love watching your videos!!!

[@JK-dj1zj]

I look forward to seeing more of your work Michael.

[@theHoneyandAbsinthe]

This is absolutely amazing!

[@writingmetal]

Your art and videos are amazing! Makes me want to draw every time I watch...
Cheers from Brazil

[@shirazigs]

Your illustrations are amazing and I love your tutorials. May I ask you to make a video, illustrating from a photograph?

[@Daninett]

Which pen is that??