I thought they were good. It's a bit like a UK postage stamp, it doesn't have UK on it, but you know it's from the UK. The same with those tail fins.
I often think the term "flag carrier" limits an airline. Why couldn't BA have been an easyjet or Ryanair and flown anywhere rather than just to/from London and a handful of other UK cities (internationally)? I know they tried with GO, but Norwegian is now spreading it's wings (for how long, no one knows).