I certainly don't have a problem with your presentation, it comes across as quite natural. Certainly I appreciate the effort you put in to help photoshop novices such as myself. I've got books magazine atriclesand web tutorials, but seeing processes in action helps to give a better idea of whats happening.
It seems to me that having an in depth knowledge of photoshop is essential for any photographer who wants to stay ahead of the game. Of course you want your image to be technically perfect, so mastering your camera, and understanding light is of paramount importance. However that tree tutorial shows how relatively easy it is to improve the shot, which could never be achieved in camera.
So much to learn, my brain hurts, but thanks for any knowledge you wish to share.