Pencil work self challenge. Draw by eye. 100 faces. Part 1

Hi everyone..
At the beggining of 2020 I set myself a challenge to draw 100 random faces from reference photographs.

I used a grid to draw anything from life prior to starting this challenge. I now feel comfortable to draw completely from measuring by eye. No grid required 😁 Im currently on drawing number 70.

So lets start at the beggining...
Initially I only gave myself 10 to 15 mins on each face. Which is not much time at all.
Faces 1-17

I really liked the loose style, that you get from having to complete them in a limited time.. but I felt I needed a bit longer to make the drawing more accurate.
So I increased the time to an hour...

Faces 18-24

Faces 25-39
I was really getting into it at this point and stopped watching the clock. I was completely hooked on this self challenge, that time no longer seemed to matter.
I found myself choosing more and more challenging reference photos.

To be continued....