Using the Ellipse Tool (U) is possible to represent a vertical fillet of white color which shape may be corrected with the Convert Point Tool.



Next we have to select the same method and the same tools for drawing one more fillet of white color.



Create a new layer and select on it the standard Brush Tool (B) and the color #F8C701 to represent a fillet as if it would be made of small circles.

 



Download out of Internet a set of ready to use brushes for Adobe Photoshop, named dw_flake.
Create a new layer next and select the Brush Tool (B) of white color out of the mentioned above set of brushes.

 



The layer’s parameters: Fill 50%
Blending mode-Overlay



Create a new layer and select on it the mentioned above Brush Tool (B) of white color for drawing several more fillets made of small circles.



On the final stage we have to create another new layer (Create new layer) and apply on it the Brush Tool (B) out of the set dw_flake to draw several more snowflakes of white color.

 



The holiday picture is finished!

View full size here.

Download brushes here.