The picture is composed of three main layers:

1. - Background - (sky).
2. - Globe - You can find a tutorial here at Snow Globe
3. - The eye - It was the more difficult part since no one in the family wanted to pose for it!
Therefore I did my first try at an "auto eye portrait".

The camera was placed between me and a mirror in manual focus at the minimum distance allowed (60 cm).
I moved my head back and forward while looking at the LCD reflected in the mirror. It took some time and a
few shots to get a sharp iris and the flash catch light placed on the pupil for an easy clone out.