They are really nice. They seem to have a mid century vibe about them so I think you will have to pull the look together with the other furniture though. Ercol style table and chairs perhaps?

Hi Werner, Do you mean that you wish to know the original designer? Its definitely mid century. An antiques or vintage specialist might be able to help you further.

Hi. I take it you want the rigid arms rather than the normal flexible arms of a spider light? Here’s one similar https://www.e2contractlighting.co.uk/product/minimal-geometric-antique-brass-chandelier-cl-38765/

Exactly what Sarah said. Lights such as your chandelier will need to replace the hanging pendant you have and you will need an electrician. They will also need to hang from a beam as they can be very heavy. An easier idea is a lampshade which fits onto your hanging pendant. I would get some nice lampshades from Dunelm or somewhere similar and fit those for now. You could always change them at a later date if you wish to. With the lampshades make sure they are for ceiling pendants and not for table lamps, as the fitting is slightly different although some do both. Just a couple of ideas