Open you turtle, you can save this there !!
pick Custom Shape Tool on Tool palette
Choose this shape
use this draw two shape layer, and transform like this
draw one more using
, ( all shape at black )
Merge 3 shape layer
add layer style
Duplicate layer background, use
to shading
in area cant use Burn tool to create shadow, must create new layer, using Soft Brush with low Opacity to continue shading
pick
, select this
Fill white color on new layer, set Opacity = 20%
pick
, draw this, then fill white color ( on new layer, low opacity )
add more
new layer again, use gradient to create highlight areas
the gradient used
My result !!
More Tutorials: 
