There’s a truism in art that the hardest thing to do is recognise when you have finished.

But with digital artwork like this, I don’t think it’s true because absolutely nothing is committed to the work. Everything can be command zeded (+Z) to a blank page and then shift command zeded (++Z) back to the latest mark you made. The errors and compromises you commit in traditional art will, in due course, deliver a signal that says, ‘You arse! You’re only making it worse now’. This is why in digital art, you never know when you’ve met the peak of the artwork or passed it and started the descent.

This Isetta was like that; there was no point at which I saw the downturn. It just got better and better with each step I took. But the more steps toward ‘perfection’ I took, the more I noticed things that needed a tweak.

In the end, you have to know when each tweak is making a barely noticeable difference, that it’s almost pointless doing it. You could spend days doing this, and if you find yourself in this situation, you have finished. You finished a long time ago.

But for the completionists among you, there’s a story that at an exhibition at the Royal Academy, J.M.W Turner saw one of his paintings and got out a brush and some paint and started amending the piece where it was hanging. 

If that story isn’t true, I’d be disappointed. There is hope for all us arty fidgeteers. For a genius, nothing is ever finished – they are deaf to the singing fat lady.