Like, usually, improvements in artistic ability are slow and gradual, and can only be noticed in hindsight. But every now and then you’re working on something and you suddenly get this serendipitous little moment of “wait, why don’t I try doing it THAT way?”
And then you do it, and it works. The picture looks better. Then it dawns on you: you just became a better artist. And you REALIZED it when it happened. And that is like, the best thing ever.