There is only a little bit of conversion here- the head was swapped out for the head of a High Elf Phoenix. Otherwise, the alignment was all down to coloration.
I wend with a blue to purple fade for most of the armor plating- I felt this was right for the god of change, and the bright pink contrasted nicely with that (and also matched a force composed largely of pink horrors).
Of course, it isn't right to leave any Imperial Knight mini without freehand, so I made sure to get a lot of the Changing God's iconography all over him.