I am looking to develop the ability to draw on the computer. I had a good bit of drawing education in my undergraduate studies but that was 2 years back and I spent more time working in 3D than drawing. I was able to pump out still-life drawings of a decent caliber. Now I want to do a sketch every day to improve at worker faster and more efficiently, otherwise I spend hours doing something that could be done in an hour. I need to get more comfortable with drawing. My goal is to be able to do my own concept sketches/painting for my 3D work and, at the same time, improve my overall artistic ability. Here is my first sketch and the original image pulled from the internet. I DO NOT claim the original image as it is not mine.
Here is my beginning sketch (took waaaaay too long)