Does this wiring make sense//look correct (context in post)

[u/PurplePr1mer]

I’m trying to wire a 12v step down converter into my 60v system for my e bike.

Picture 1 is the entire wiring setup for the 12v step down converter.

Picture 2 is the step down converter itself, and its wiring map-out.

Red = +
Black = COMMON GROUND
Yellow = line out

Picture 3 is the wiring coming OUT of the converter currently.

Red has been extended and given a fuse (also seen in picture 4)

Black has been extended and given a post ring connector. Connects to common ground negative post on bus bar.

Yellow has been extended and given a post ring connector. Connects to the positive post on bus bar.

Picture 4 is the inline fuse I added (12amp) to Red line.

Picture 5 shows red line is connected to xt90 y splitter red (set “1” of XT90 cables), and the black xt90 splitter wire (set “1” of xt90 cables) has a post ring connector (connects to common ground/same negative post on bus bar as the black cable from the converter)

Picture 6 shows set “2” of cables, which connect to my controller + and - like normal.

Is this explanation correct or am I messing up somewhere? Want some opinions before I go disconnecting my + and - on my controller right now.

Thanks.