UV not Changing / Updating when unwrapped

Can someone tell me why I cannot change the uv of an un wrapped mesh? When I load a new image it does not appear on the mesh in the preview. Could this be because my node tree is incomplete / incorrect. This is a cycles project.

I am trying to follow this tutorial and I seem to have trouble creating a second uv map

I look forward to the day when I finally wrap my brain all the way around uv unwrapping


Thank you for any suggestions or help you can provide.

I am no pro and certainly have my share of questions… So if this does not help (sorry in advance)