I've never had any formal art training. What you are looking at has been achieved through practice and experimentation.
Below is a sampling of my personal artwork prepared in colored pencil, charcoal and pastels.
Additionally, I've expiremented with stencils. Samples of this can be viewed here:
Colored Pencil:

Pencil and charcoal:
Pencil, Charcoal and Pastels:

Pastels:


Unfinished works in pencil/charcoal

