Make use again of these both instruments: and to represent the contour of the right glass (the inside color should be black).

Create Linux Operating System desktop background in Photoshop CS

Create Linux Operating System desktop background in Photoshop CS

Blending Options-Stroke

Create Linux Operating System desktop background in Photoshop CS

Gradient?s
parameters:


Create Linux Operating System desktop background in Photoshop CS

Make a copy of the new made layer and use the same Free Transform option to turn around the drawing on 180 degrees.

Create Linux Operating System desktop background in Photoshop CS