Gradient’ s parameters:

We should merge down all the layers composing the eye in a group now.
Make a copy of this group and apply Free Transform selection to increase it a little.
Place the eye’s pupil and the flare in the central part like it is demonstrated in the picture from below:

Select the next tool to draw the silhouette of the other hand.

Blending Options-Drop Shadow

Blending Options-Gradient Overlay