Miyagi, blue icle, cali, austera, or WHAT?

[Fishhy]

I'm not entirely certain what this is.
It is growing more like a tort to me, but has yellow on the VERY tip where it has growth.
Any help in positively identifying is appreciated!

 

[TUSI]

Very hard to see from the picture but it's definetly not a tort I think it's more an austera