Here is my almost finished rig, now I need to parent constrain the controls to the joints and bind skin then it will be finished!

Here is the rig I setted up for the eyes:

 

 

 

I also added an extra control for each eye so that they can be moved independantly:

 

I did an IK spline handle for the tail:

 

 

For the hands, I grouped the joints and added and extra attribute (fist) in order to control the fingers: