Firstly, you must know that  I am a user of Twitter (my account: @ dessinsplaisirs) and I’m subscribed to some accounts including the creator of the blog Underpaintings : Matthew D. Innis. This site is awesome, I discover very interesting painters. I recommend you to follow his blog.
This week, he has concentrated to let us know David Gray, a great realist painter specializing in portraiture and still life. The painter also want to share with us his passion and makes videos to show his technique. I don’t know absolutely and luckily Matthew D. Innis to talks about him !
Here are two articles of Underpaintings about David Gray and his work :
Color Palette : David Gray
David Gray : Still Life Demonstration
And of course, you can find blog, website, Facebook page and YouTube page of David Gray on my Pearltrees :
Happy reading !