Originally had the valknut on the arm (as you can see)..but felt it wasn't for me after a while, so got the koi to wrap around it. The Valknut was also shaded and given perspective (wish I could show it just on its own - it was just block black with no shading).
Koi took 4 sessions, each approximately 4 hours each.
Rudolph in Estonia (Tallinn) did it, and I'm still going back every couple of months to get it touched up (for free!) such is his level of service.