I learned a lot from John Garner's video "Learning bryce 7 pt I", where the goal is making a bishop. The video was farily easy to follow, even for beginners. You may, however, need to stop and restart the video (as I did) to really understand some parts.

I made a couple of renders with no postwork that you will find in "Bryce Renders - Based on Tutorials":

• Bishop
• Bishop and Table