Kidding aside, I've always believed that sharing knowledge is important, and as soon as you get to a place where you are skillful in your endeavors, you should help the next generation of newcomers to learn what you have mastered. I've never had secrets in my work and don't plan to start now. So as I continue to create digital art for my galleries, I will also continue to add tutorial pages with the various techniques that I have found most effective. 
 

Lighting the Museum Gallery 
A lighting tutorial for creating a realistic interior scene.
 

Creating an old stucco wall
(with patches of exposed brick) - a texture tutorial showing how unusual textural images can be created by combining multiple images from various files into one composite effect.

Creating "Hero" trees
The term "hero" is widely used in movies and commercials to mean the best looking, most visually perfect example of something, for featured viewing and close-ups. Learn how to make these trees for your Bryce scenes.

Creating Extra Trees
How to make extra trees to fill a background.