Matt Khor's site Ctrl+Paint is a great for those who are bettering their digital illustration and concept work. I stumbled upon it a few months ago and I couldn't believe the amount of information he was sharing for FREE!!! Even his online store is reasonably priced. I'm trying to take in as much as my brain can handle at a time. Going through his Digital Painting 101 here my work from Lesson 3. All I had to do was download the picture and mix the colors to get them similar to the colors above. I decided to add the homework for Lesson 4 as well. He wanted us to be familiar with "temp layers". These were great exercises and I look forward to learning more from him.