Looks pretty good except for one thing...you may want to get that gfi strip up off of the floor, especially so close to your grow. One spill (or a couple of good sprays) is all it would take to fry your equipment or yourself.
GFI's, especially cheap ones, are notorious for not working properly. Now-a-days I always treat them like they are not going to work at all when needed.
I slipped once, while adding a gallon of water to my coral reef tank. Only spilled about a tablespoon of water, but it landed on one of my GFIs. Watched it sizzle and catch on fire, then blow the capacitor on my tanks 400w MH ballast. The GFI never tripped.
This is a relatively common story with fish tanks. Definate buzz-kill.
Safety-Safety-Safety