Wiring a shed

Wiring a new shed I just put up. Very little working knowledge of household electric (120v), just want to make sure I'm doing it right.

Attached a few photos, power comes in the rear where you see junction box in corner, from there (going right) I am running 2 receptacles along the rear wall a GFCI accessible to exterior, and 1 along the right wall, (going forward) is 2 receptacles on the left wall, 1 GFCI accessible to exterior, and a switch above the door going to a receptacle on the ceiling.


My question is this: do the standard outlets need to be independently grounded like GFCI's do? See pic of standard outlet, I ran both in/out ground connections to the outlet itself. The GFCI's I installed as the diagram shows. I already have the GFCI's tidied up with weather proof covers, or I would have taken pic.


Wire I'm using is 12/3 solid metal clad, overkill I know, but I commonly 'over-do'. Aside from overhead lights, the only thing this structure is going to be powering is various battery chargers, a fan or two, an air compressor, and a leaf blower-all of which will only be used occasionally, but often at the same time.

Attached Images

      

Wiring a shed