I ran some conduit into my shed from the panel in my basement. I have that going into a junction box. On the other side of the junction box, I have conduit running back out of the shed to a pond. I will have a GFI rec. there and I would want it switched in the shed.
I also want a light that is switched in the shed and then I will put in a GFI rec in the shed.
What size wire did you pull, how many and is it in PVC?
It looks like you are just installing a branch circuit.
Install a GFCI breaker inside the basement panel or install one at the box you installed at the shed. Feed your shed light and switch off the load side of the GFCI receptacle if you use one. Any subsequent circuit extensions can be protected by this GFCI receptacle. It may be easier to use a GFCI breaker as it will allow for plenty room in your box and protect the buried conductors.
Then just run another conduit or UF cable to the pond. Make sure it is connected to either the GFCI breaker or receptacle. And most important is that you have included a ground (EGC) wire in your pull. If not you need one. Have fun.......John