Blending Options-Stroke
Gradient's parameters:
Make a copy now of the new represented layer and apply again the usual option, Free Transform, to turn the copy around on 180 degrees. We'll make the changes also on its parameters:
Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient's parameters:
Make use again of these both instruments:
and
to represent the contour of the right glass (the inside color should be black).
Blending Options-Stroke
Gradient's parameters:
Make a copy of the new made layer and use the same Free Transform option to turn around the drawing on 180 degrees.
Take the following instrument
and draw a flare on the middle of the right glass.
Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient's parameters:
Apply the same instrument to draw the next flare, this time on the left glass.
Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient's parameters:
Make a copy of the primary layer of the right glass and use the next instrument
to erase the unnecessary tops situated on the bottom.
The next tool
will be helpful in making the corrections on its shape.
Free Transform option gives the possibility to minimize and change the parameters the way it is necessary.
More Tutorials: 
