The next layer has the color
#DA1818

Next layer has the color
#AF0102

Next we have to change the top part of the ball:
Fill 0%
Blending Options>Inner Shadow
Blending Options>Gradient Overlay
Gradient’s parameters: 
This is the color of the lateral shadow -
#AE0001

The color of the top part of the ball’s attachments is
#AC0500

Next we’ll change the parameters for the
green ball The primary layer:
Blending Options>Inner Shadow
Blending Options>Gradient Overlay
Gradient’s parameters: 
The next layer has the color
#2CAB02

Next layer has the color
#1B6802

The parameters for the top part:
Fill 0%
Blending Options>Inner Shadow
Blending Options>Gradient Overlay
Gradient’s parameters: 
The color of the upper shadow on the right top is
#124B00


Make a copy of each ball’s group. Mark out the copy and press
Ctrl+E. Do this operation with each copy. The copies may be turned over with the
Free Transform selection, changing the sizes, as it is represented on the next picture. This way we’ll get a reflection.

Mark out the layer containing the reflection and make a mouse click on the bottom part of the layers’ palette on
Add a Mask selection. Choosing the
Gradient Tool (G) of black color, represent the semi transparency:


Selecting the
Ellipse Tool (U), try to make three similar layers for shadows and after that place them under the balls’ layers. The color is white.

Apply the same parameters for the layers containing the white shadows.
Fill 20%

Create a new layer on which we must insert several white dots of different sizes, placed around the ribbons. In this case we have to choose the
Brush Tool (B).


Finished!
Inspired from
Vector Illustration of three Christmas Balls by
Ann Triling.