Here is a short video tutorial on how to add an image (eg logo, eyes, tattoo ..) to a texture in Blender. Hope it help to you ...

How to morphing shape and texture quickly in Blender. Transforms objects both in shape and in material. Subscribe!

The build plate only lets you texture the bottom, and the fuzzy skin texture isn’t easy to control. So he shows how to use Blender to create specific textures to produce things like wood-like or ...