Copy the new made layer several times and use Free Transform selection to minimize the necessary places. Don’t forget to place everything out like the next picture indicates it.
Take the following tool and insert a figure, like the next one.
Fill 0% on the layers. Blending Options-Gradient Overlay
Gradient’s parameters.
Having the previous instrument, picture now another figure of white color.
Take the same instrument and represent a fir-tree branch’s silhouette with the shown sizes next step.
and insert a figure, like the next one. 
