How do you get clean edges? Just wondering...
I use the polygonal lasso
tool for drawing in shapes, like the blue on Batman's Mask and his cape and I shade by creating a new transparent layer
and drawing in either white or black lines with the paintbrush
tool and then blurring them with a combination of the Smudge
tool and Gaussian Blur
filter, then I use the Eraser
tool to get rid of anything that goes outside the "lines".
If that makes sense.