free sketching

I found this website with great facial reference for drawing.
The website is http://earthsworld.com/ and here are some of my sketches:

Underbite-doggie

Walter White speeddrawing (1hr max)

Dominique Pinon - Aquarel and Charcoal -

H.R. Giger

Now this was fun to do!

I used several mediums (acrylics/charcoal/pencil/conte crayons) on bristol paper

Lizard Aquarel

Aquarel on 400 gr. Arches cold-pressed paper