Thanks for the quick and interesting designs! A few comments on these specific ones:
* I liked the eye shape in #13
* I also liked the look and feel of both #15 and
#17* I liked the idea of #11, but did not like the font and open style of the "T" as much in that one
* I felt like #16, with the arc running across the Tensus word, might be harder to read in smaller type so was less interested in that one
Thanks again for the quick turnaround!