Blending Options – Outer Glow

Blending Options – Bevel and Emboss

The eyes, as you may see, are finished!

Pass to representing the shadow and the highlight on the alien’s face.

Set all the parameters from below for the layer containing the shadow and the highlight.
Blending Options – Inner Glow: 

Blending Options – Gradient Overlay

Gradient Editor:

On this stage we must get the next picture:

Create a New layer and put it together with the layer containing the shadow and the highlight, applying Ctrl+E. Marking them preliminary, put together the layers on the layers’ palette. Next select the Burn Tool (O) and blur out the edges on those places, marked with red color

We must get the next result. Create a New layer after that and choose the Brush Tool (B) to insert a spot of white color. After that, choose the Smudge Tool (R) to blur out the spot on its diagonal direction. Finally make the necessary corrections on the picture with the Eraser Tool (E)

Try to make next an ellipse with the Ellipse Tool (U) and situate it under the face’s layers.