Making a watercolor effect in Illustrator is easy. First, create a new file with the desired size.
You can use any size you like, but for this tutorial, I’ll use a 600 x 800 px file.
Next, open the file in Illustrator and create a new layer. Use the Rectangle Tool (M) to create a rectangle that is the same size as the file.
With the rectangle still selected, go to the Effect menu and choose Stylize > Watercolor. This will open the Watercolor Effect dialog box.
First, set the Mode to Overlay. This will allow the colors in the rectangle to show through the watercolor effects.
Next, set the Opacity to 100%. This will make the rectangle completely transparent, and the watercolor effects will show through.
Finally, set the Blending Mode to Lighten. This will allow the colors in the rectangle to blend with the watercolor effects.
Now, click OK to close the Watercolor Effect dialog box.
Your rectangle will now have a watercolor effect, and the colors will blend together nicely.
Making a watercolor effect in Illustrator is easy. All you need is a layer and the Stylize > Watercolor effect, and you’re good to go.