ummm interesting question, i use digital water color, then i dry it and blend it and color again, you will get a similar look than reality.
But the ones you want arent the digital water color but the other nes, but those makes my painter work so slow so i avoid them. I recomend you to mix blenders and digital water colors in grain mode, so you can mix them when drying them, and get the same result.
In traditional you can do all with just one brush, in digital you need a lot of brushes to get same result.
There are no such things as bad art, just tight deadlines.