The layer’s parameters: Blending Options>Outer Glow



Blending Options>Stroke

 



Take the Ellipse Tool (U) and try to represent a highlight on the garland:



The layer’s parameters: Fill 0%
Blending Options>Outer Glow



Blending Options>Inner Glow

 



Draw now a berry on the upper left picture’s corner, selecting preliminary the Ellipse Tool (U) too.



The layer’s parameters: Blending Options>Gradient Overlay



Gradient’s parameters:

 



Next we’ll try to make a highlight on the drawn berry, choosing the same instrument of white color. Press SHIFT button when doing this operation.