on the free to use solution, there is likewise a big push towards 'prompt mining' and finding superterms that network well together to produce better, sharper and more coherent art. I wish them luck on their work and some of them post here on derpi with startlingly good results.
In practice for us mere mortals however, the ai gives you something like ![this](https://i.imgur.com/fP9J7NX.png).
And it is the purview of the human behind the AI to see the potential and provide it the direction. There is no one button 'oh you got her skin tone wrong' solution, that had to be done by hand in photoshop. even something as simple as 'remove that text bubble please' is more of a wrinkle than one might expect. Unless of course you know your way around an art program, if you've heard of a clone stamp then The era of image manipulation is here for you, maybe you could never get your rendering or linework down, but if you know your way around a transform tool and understand the importance of a layer mask then AI can unlock things you may have thought forever out of reach.