Hmm, for my own game I've been looking at altering replacers other people made to my liking. It's what I did with http://i489.photobucket.com/albums/rr256/ericthered1090/Random%20Stuff/md_neo_mca_centurion.jpg. I think NX9 used a retextured storm atronach or something for his frost atronach. Wasn't my cup of tea.
i've seen that centurion.... liked the textures, but not the head design. were i more of a graphics guy, i'd be doing the same. every now and then i come across something that hasent been "updated" and it looks quite out of place (a certain door texture comes to mind, though i cant remember exactly which one.
come to think of it, i think the only frosty improver i specifically downloaded was one that sharpened the texture and added particles (?).
i really should have followed the old techy advice of writing down all my changes.