No, human artist can't do this.
The main source of uncanny valley in AI art is light and colors. That's because those come from photos and 3D renders which have heavy post-processing.
No, you can't apply those things to a drawing. For example: a great LUT that looks amazing on any photo would turn anime style drawing into a complete mess. Not to mention that the entire drawing is split into dozens of layers, and you need to manually create masks for a lot of effect.
Then comes the fact that there isn't any drawing software besides photoshop that has all the tools for the job. You'd be surprised how many artists use AI art to get colors and gradients.