When you decide it is complete then it will be complete…the choice is yours and yours alone.
Now if you have something specific that you need help with then we are heppy to help.
Sidebars are called Panes.
Genesis a plain grey figure which is the base figure which you can Dial/Slide in the details like body shape etc via the Parameters or Shaping Pane while the figure is selected. Select the head only and you get more adjustment sliders just for the head.
M5 and V5 are Charcater presets for Genesis which load morphed in to those redefined shapes and with skin textures.