1996 Tacoma Big 3/4

1996 Taco 2.4 M/T.
FYI
(The first picture was not the finished wiring)
So I ended up attempting some wiring upgrades in hopes of having less voltage dropping than I do at heavy bass hits but honestly its my first time upgrading cables and I’ve done some research for my car specifically and Im just not sure if I have grounded/connected all the places I need to so I can actually get the benefits of doing this so Im looking for some experience/help.
Yes I am planning to stick with the Stock alternator since I only have one sub running on this system.
Currently I upgraded:

• +Positive+ to fuse box
• Same Positive that comes out of the Fuse Box to Alternator Positive
• +Positive+ to Starter Positive

• -Negative- to Ground of body? (The shortest run that is right next to the negative terminal)
• -Negative- to a bolt that is highlighted in Pink in the second picture Im not sure what its called but I know that the Original negative cable has the ground there. Would that be considered the “block ground”?
In red is the starter positive
I just need some help lmfao.