'Real 3D' Minibrot Squarry

Created using Ultra Fractal.
The "Squarry" version of the "Real 3D" Mandelbrot, coordinates and viewing parameters the same as the other versions of the same minibrot, just different 4D maths for z^2+c.
The 4D maths just differs slightly from the "True 3D" roundy version.
In this case the multiplication table for our unit vectors, r,i,j,k is:

* | r i j k
---------------
r | r i j k
i | i -r -k j
j | j -k -r i
k | k j i -r

For anyone who's missed it, here's the original "roundy" "Real 3D" Minibrot:
[link]