Line Quality?

So I have really been trying to push and develop various types of marks. These are a couple of the more successful drawings. I make a lot of bad drawings these days but it's always fresh and new whenever I draw. I usually don't spend more than 90 minutes a drawing.

Fig Jan 26 Feb 2

Toned paper with black and white pencil. 12x18
Charcoal 18x24
This was done on some cheap paper it was hard to push the values.
Nupastel. The most difficult medium I have ever worked with...

Jan 14-19

I thought I would try for messing with more "style" on this one. The model had an interesting face and cool tattoos. She was difficult to draw, I think because of my angle and her proportions.

Pencil Drawing

60-80 min black and white pencil drawing.

Dec and Jan drawings

John Erickson's class charcoal/nu pastel
Charcoal
Black and White Pencil 12x18
A caricature of myself pencil.

Gesture Drawings

The top drawing was a 25 min pose. The others were 2 and 5 minute poses. Nu pastel on 18x 24. There were a couple other drawings but I can only post 5 images at a time. Definitely a prolific morning.