Siderian variations

I had the random idea of making this 'naked siderian challenge' -
and I thought...let's reveal the answers of who is who.
I also added some fur and some descriptions of the variations in body build possible among siderians (big felines nearly as tall as a horse). There is actually quite some variation in size, heaviness, shape of the back, way of carrying the tail and of course in the face (ears, profile, eye shape, muzzle shape ect).
So I tend to be quite confused when people think that Yves=Stian ...Oo...just because they are both white?? That is where the similarities stop...Actually there are three white ones in this sheet and quite some black ones and they all look very different.

Here are their charactersheets
Matthias charactersheet
Falkner charactersheet
Sasha charactersheet
Yava charactersheet
Goran charactersheet
Yves charactersheet
Alva charactersheet
Stian charactersheet
Nigras charactersheet
Jerald sketches