Classic look Attachment 17051 Responsive template Attachment 17052

Hello, I just discovered responsive template and tried it.
It looks good and is passing Google mobile requirements.
I used before custom version of Classic template and it took me years to tweak to the look shown on first attachment.
Second Image shows current "out of box" look.
Is there anywhere description of Step by Step customization?
Where to start to customize Responsive template?
Is it actually customize able, like classic with custom folder for each section?
Can be anything done on admin Panel?

Any link pointing to begining of the process will be greatly appreciated.

Than you.