Piero's Brother "Tico" Final

So, after some good ol' hours I think it's time to finish this part of Piero's course and try to move on to Rig. I've used the version 2.73 and had to adapt on some things. Also the mapping for the feathers density and lenght I could not make it respond that well, so I've used Vertex Groups (but I guess that was just me). PLease critiques on how can I improve it are more than welcome so I can move on (maybe feathers, too translucent?) Thanks