Oil Painting- seeing color as value

This post is for the hard core artists who might stumble across my blog. As you've seen I don't regularly post because....I don't have a good reason why not. I just don't. BUT, here is a link to YT videos that I did and discusses the concept of color and value. There are two parts. If you punish yourself and make it through part 1, please grab another cup of your favorite beverage and watch part 2.

PART 1

PART 2

Sketchbook 1

Over the years, I've filled several sketchbooks. If I was an art student I would fall short: Always be drawing and sketching was what I remember. But alas, now I'm more mature with a fuller schedule, and an art career that is mainly just a hobby. But, I still sketch and love to draw. Here are a couple of my doodles.

Tux, my cat. Charcoal on vellum.

 Some super hero. Pen

Male portrait, pen

Blues musicians. Pencil. While at Bluesfest 2010 Wisconsin

 RIU Palace resort. Riveria Maya, Mexico. pencil. This was paradise.

Poolside at The Venitian, Las Vegas. Pencil. It was 100* that day.