What a cutie!
Unfortunately, I can't say too much about her breed - I actually have a rabbit that's a somewhat similar shape, but he was rescued as a meat rabbit so since their origins are so different they could be completely different breeds.
As for settling in - its good to give her a chance to explore her environment while things are quiet and calm. Make her feel safe in her new space. Maybe don't run the vaccuum for a bit and don't spend too much time overwhelming her with affection (though spending time with her in the same space is good so you can get used to each other). Try not to pick her up too much in the first little while as most rabbits find it pretty startling.
Otherwise, it all comes down to rabbit care basics - don't keep her locked up in a cage, try and keep her somewhere where the ground is soft, always provide fresh hay and water, etc.
I think the most important thing is having a good shelter. Rabbits can only feel calm if they have somewhere quiet and dark they can hide when they're stressed (sort of like fish, haha!). I have a nice long rectangular cardboard box for my rabbit that he loves. You can try cardboard with yours, but just keep an eye on her to make sure she isn't eating the cardboard (my guy CHEWS it off, but spits it out). Ingesting a little plain, ink-free cardboard isn't a big deal for most rabbits, but too much can do harm. If cardboard doesn't work, you can try shelters bought from the pet store or even make one yourself out of scrap wood (no nails and sanded smooth, of course - and check the species of wood to ensure its safe for her to chew). Some shelters offered at pet stores let a lot of light in which rabbits don't find particularly comforting - make sure it's somewhat dark, mimicking the dens rabbits would dig themselves in the wild.
Best of luck!
Good evening ,
I’m just wondering if you guys could help me please on a few things ... I’d really like to know what breed she is. They didn’t know but presumed she was a x. Anyone got ideas please ? Also any tips for settling her in. I’ve left her really since she’s been home but put her in the garden today (enclosed) and had a job getting her back in without frightening her. Many thanks j and Doris 
