Agree, something like light 1 but in black. Just refresh the walls and ceilings with white paint. I’d keep the wood and bricks as is. So you need to keep the glass frosted, it would like amazing clear (if there is garden on the exterior).

if the mortar is pale i would paint only the bricks black and then go for lighting option 3 ...white just doesnt link with the stairs

Hello, what a gorgeous home you have! I would refresh the walls, skirting and ceiling in a pure white, the first pendant you listed is the best option, a brass would reinforce the warmth of the brick and timber without adding to the 'heaviness' and the metallic finish and glass adds to the texture of the space. It is a lovely and modern but still mid century era - well done! If there is no other light source, do consider more if you are painting anyway, recessed LED's would be a good choice, there is enough going on here so something sleek or discreet would be nice.

Love this stairwell! Totally agree re the first brass fitting being the best choice, it will bring light and life and a contemporary edge. White walls and remove that second pendant.

What a great space.
Depending on what you are doing with the brick elsewhere in the house, would NOT paint it here. Keep the windows black as the tie into the balustrade and are nice and crisp. I couldn’t see detail of architraves but they could be painted whatever fresh white you paint plaster walls.
The first light is stunning.

something like this?

sorry photo didnt send

1 -- leave the existing lights , or maybe go bigger but in a similar style . I like those string ball ones -- you could possibly even have some fun and go for a bold colour , depending on the rest of your house .

2 -- wallpaper the feature wall in an 'interesting' burgundy or even reddish/pink pattern , maybe some scrolls or maybe with a fine gold stripe embedded .

3 -- if you want to stay white or any of the 19472 variations through to beige , add a large colourful abstract painting -- at least 1.5metres x 1.2 .

4 -- that 'roof step' where 1 of the lights is looks out of place -- I'd paint the 2 sides in a charcoal/real deep steel blue ( darker than the carpet but still showing some homage to it ) . I doubt it would darken the stairwell too much , but it would look more balanced and cohesive .

The bricks are 'interesting' and doing anything with them could be tacky IMO , the stairs and floors are fine as you have worked out , it just needs a feature wall or focus .

Thank you pottsy99 for your feedback. I really like the idea of adding a colourful abstract painting . Im not one for wallpaper outside of bedrooms but it could be an interesting idea I'll need to consider. Yes agree Ive decided to leave the bricks as is. Many Thanks.

Those beautiful comet-like lights, not the waggon wheel or pendants. It’s a big space up there.