So, say we have a drawing with black line art.

Like this one, for example.

Now, this looks kind of boring and hard on the eyes.

But, if you add a layer above the line art layer, and put a clipping mask above it and use very dark red...

Then your drawing will look much easier and more interesting to the eyes.

To make a light illusion, just add strokes, instead of coloring the whole thing.

For example:

The before,

And the after.

I hope this helps any new artists on here!

Have an awesome day guys! ❤️