You have answered the question yourself Dennis!
You have continental Europe, you have America (and Canada) and then you have little old Britain on an island in the middle. Hmmm....
I do think our quaint little British locomotives look the best even if we are hopeless with kits!
There are kits available that represent Britishness, just not too many. Dapol (ex Airfix), Hornby and Peco do some. And then there are two big card kit manufacturers, Superquick and Metcalfe. Thats about it really. And to be very honest they probably offer much that British OO outline kit builders need. Now that Skaledale has 100 resin models or more in the range then the options are clearly a lot better. Not too sure about N gauge and there might be issues here. The new Hornby Lyddle End range has probably been a help for N gauge modellers.
Think about the available space though required for a model railway. There are very few home modellers in the UK who have the luxury of the space available to USA and European modellers. Given that the Brits do live in mouseholes and do have space limitations the Brits tend to fill all available space with track rather than buildings judging by some of the layouts I have seen. This is not a bad thing as I do it. There has got to be somewhere to operate all that fantastic rolling stock!
I personally favour backdrops as I am forced to work with relatively narrow areas and a backdrop brings depth.
Happy modelling
Gary