almost there, put a small angle onto the banjo so the gland fits square and secure, also it seems you have used brass knuts as spacer for your 4mm brass slotted bolt, I would rather cut the bolt shorter and have it so the slotted side of the screw/bolt is at the top for ease of tightening, it looks as though this job you are doing is for an external supply and you are using this as a joint box to change from T&E from the house to Swa as it exits the box, I personally wouldn't use a galv box as some suggested in this situation, what you have done (almost complete) using an Ip rated enclosure and ensuring that you have earthed the armourings as well as the individual earth core (not taped up yet use the black taped up as cpc, grey taped up as neutral),
good of you to seek advice and take the criticism in a good stride can't fault you mate