I remain thankful to Kimberlee, a henna artist in Jupiter Florida for recommending Sangeet's design book. Click the title of this post to visit Kimberlee's "space".
This fine line henna tattoo was made possible in part by mixing the paste to be rather liquid, sticky and stringy.
The addition of fenugreek seeds in the tea mix which I add when first mixing the paste helps create a stringy mix. Adding a bit of pomegranate juice just before putting the paste in the cone ensured the paste would be sticky and liquid. To get the fine line, I cut just a bit off the tip of a plain old plastic cone... and voila!