Create a new layer and select the above mentioned brush of white color to draw a kind of ornament like that one from the next image:

The layer’s parameters: Blending mode-Overlay

Create a new layer again and use on it the same brush used before for drawing several more elements of the same ornament, started at the beginning. The color is white.

Select the parameters from here for the layer: Filter>Blur>Gaussian blur

Set the parameters from below for the same layer: Fill 50%

Using the Pen Tool (P) and the Convert Point Tool by turn, it’s possible to represent three more elements on the ornament, having the color #545E4E

Finished!

View full size here.