Step 5
Once you’ve filled your letters with blended curves, play with the curve layers, making them larger (Cmd/Ctrl + ]) or smaller (Cmd/Ctrl + [) until you’re happy with it. Create some white swirly lines inside the letter, especially around the white areas, using the Pen tool with a 0.1pt black line filled with white.

Step 6
Once you’re happy with everything, it’s time to create those outside swirls. Unlock the Draft layer you created at the beginning. Choose all the lines, then select View > Guides > Make Guides (Cmd/Ctrl + 5).

Step 7
Now we need to create a brush. We need a stroke that’s thin at the beginning and end: you can open the file from the files you opened at the start of the tutorial and copy each brush shape to your file – or create a line of your own, then click the Brush symbol and choose New Brush > New Art Brush > Proportional.

Step 8
Now use the Pen tool to create a path that follows your curve guide. Then choose your brush, set it to a very fine stroke (0.1 to 0.25pt). Now trace over the swirls outside and inside the letters. Play with the opacity – setting it to 50% at the Normal blending mode, or setting the blending mode to Overlay and the opacity to 80% inside the letter.