This is a great fly originally created by Chris Stuart of Tenkara Bum, my version is similar but different materials. See materials list here https://dragontailtenkara.com/blogs/tenkara/killer-kebari-variant-tenkara-fly-tying-pattern
Chris uses colored yarn in the original Killer Kebari fly pattern but I really prefer the Vicunna Dubbing Chadwick's SUB as it is more buggy looking and a bit more translucent than the yarn, plus I don't have to color it with a marker. Enjoy the tie.