There are many different choices of valances available on the market. The video shows 10 or so different types.
Valances can add color, softness, hard lines, texture and many other different looks. You can’t just pick something at random and expect it to compliment your room. Your choices will have a profound affect on how your room is finished off. Some people choose full draperies or side panels, but others choose a valance, or top treatment. They are typically less expensive than drapes, but can add so much interest. The biggest mistake I see people make is that they don’t go big enough. Valances should match the scale of the room, unless there is a very specific reason not to. Your choice of fabric will also have a huge impact on the overall look of the valance. Solids, prints, textures, silky, matte, plaids, stripes. All of them would make any valance look different from the others. Choose wisely. Your window fashions expert would be happy to help you through the process.