The car looks excellent mate Although it's hard to give detailed advice from those pics as they come out pretty low res on my screen?

If you take a white cloth and wipe it anywhere (behind the engine, under manifolds etc) and it get's dirty you'll need to sort that, depending on which class of concours you intend to enter - for working class that won't be necessary.

I'd be tempted to put orange indicators back on, and i also spied some non standard front speakers in one of the pics, that you many or many not want to change.

What's your current polishing regime? You'll probably be able to get it even shinier if you wanted to, by using some additional products

Gareth