I've done two tiles here using string number 40. It's a simple string that I came up with when I was playing around with circles.It's a fun string to use because it allows the tangle patterns to really spread out so you cam appreciate their details. Linda Farmer featured it on tanglepatterns.com last week. http://tanglepatterns.com/2013/02/tanglepatterns-string-040.html I was away on vacation at the time so I couldn't post a picture right away. It's just as well since when I came back I was able to use this string for the Quandary challenge.
There is one other interesting thing you may notice about these two tiles. The coloring looks very different. The first photo was taken on a cloudy day while the second has bright sunlight (note the shadow). I do my best to correct the coloring so it reflects the tile as it actually appears. Alas, I'm not an expert in Photoshop so it is what it is!