-MMD : Blender Tutorial- Reflective Areas

Thank you for this wonderful tutorial! I'm newbie in blender x)

Could i ask you something? I noticed that you're making really nice realistic arts using something like as a normal map. I tried to find something like this with a tutorial on making realistic hair without a scratch, but i couldn't. i'm using mmd as well. i'd like to know: is it possible to edit a hair not re-creating it from scratch, just adding some cool realistic maps? If its possible, could i ask you to make a tutorial, or explain to me here,please? х))