Heartstrings is a tangle pattern from Helen Williams. It's easy to draw and when you get going it just flows - just as any good tangle pattern invites the 'zen'. I did it using string 18 from Tanglepatterns.com. However, rather than try to fit different variations of the tangle into each section, I decided to simply change the color of the pen I used whenever I came to a string line. I used a purple colored tile and shaded with coordinating colored pencils.