Loop Ceiling Light Help

Put the 3 red ones into an insulated connector block, or a wago ,and it can sit within the light fittings base ,alongside the other terminal block.

 

That doesn't appear to be the last light in the circuit if it was there wouldn't be 2 neutrals or 3 lives in the loop you can't just put tape on the connections the loop also takes the feed to your switch a sufficiently rated connector block or preferably a 3 port wago would be best

 

Don't lose that red insualtion ring around the black wire, it's important!

You can use these Wago connectors:

https://www.toolstation.com/wago-224-3-way-lighting-connectors/p87820

 

They would be fine too, rather large but should fit.

 

All three reds in one connector. Two blacks and blue from the light in another connector. You'd need to join brown (light) to black (red sleeved) and earth - earth.

If you are keeping the white connector, then two terminals can be used to join brown and earth as above.

 

Use suitable term block or wago type connector.

 

You seem to have lost one of the screws from the new fitting already!

 

All earth conductors connect to each other in a suitable insulated terminal block or wago,not that bare brass thing.

 

All the earth conductors need connecting together in a suitable connector also the black flex doesn't go through the mounting bracket either

 

The mounting bracket (that you've still got in the pendant) should have been attached to the ceiling first? That's what you secure the light pendant to!

Im no electrician but recently changed all of my lights with help from an electrician ...... think you'd have been better off with 3 of the wago connectors.
Then you could have wired them up as they were already (from the ceiling) and just added the ones from the light to the respective connector and not used the white one that came with the light

 

This video simplifies things (I hope)..