first, you need to texture him. do this with gimp, or a 3D painting software like substance painter. or even blender, just look up a tutorial on how to do it properly.
as for the feathers, you need to do some fancy stuff in the node editor. look up how to use alpha textures in cycles.
I did the texturing already. I just wanna control how shiny the skin is in the render. Also, it seems that I need to make a whole thing of nodes before i can make the alpha transparent but I don’t have any nodes. How should I start.