What a huge disappointment
1) it's not a retro livery at all but a modern one
2) it's their worst scheme by far (British what? for #### sake!)
3) given the above, it might be a blessing, but why do this for a few months when other airlines do this as a permanent way of reminding passengers of their heritage?
I know it's a very subjective thing but to me it's a huge wasted opportunity.