She has a variety of different programs she uses to 3D model all the different scenes and re-texture it all as well.
She most likely went to art school for four years or some design school that taught her the fundamentals of each program to be able to do this. No one will figure out her secret nor will she every release how she does what she does because this is what makes her a unique editor in the community.

Program List:


You most likely wont figure out how to edit like NikkyyHD does but you could sure try by going through every program she uses and interconnect them all to create what she does.
There is that or paying her for lessons would be most likely the only other way.

Hope this helped,
-Naps