More Ideas 

Some of the limitless variations and possibilities of frame design.

One piece to the left was an article used a burl frame and created a faux burl panel, French line (hand-ruled thin lines on the mat) and painted bevels to play up the article and connect to the frame.  The Gallery Framing Review pages shows many of these pieces and includes a short description of how they were designed
Elements-Beyond Basics for more design techniques such as French line, painted bevels, fabric mats, etc.