I have been working for a while now , as usual Zbrush for sculpting and detailing , used maya and vray for rendering and shading , topogun was used for retopo , used yeti for the hair .
this is based on a concept by Jonathan Fletcher (who is by the way an awesome 3D character artist as well) I saw it and fell in love with it !! you can have a look at it if u are interested , http://www.facebook.com/l.php?u=http%3A%2F%2Fu.cubeupload.com%2FJFletcher%2FGettinTooOldForThisS.jpg&h=bAQGZieMW
hope you like it, cheers!!