Did you get permission to use those photos?
I am a horse color genetic lover/obsessor, so don't think I"m being mean or anything, but going to point out incorrect things.
Aside from the above post,
Homozygous champagnes look NO different than heterozygous champagnes. The bottom right on that page is incorrect.
Pearl is visible in it's homozygous state, not JUST with a cream gene.
The bottom right on dun: homozygous dun does nothing different than heterozygous dun.
White horses do not usually have blue eyes. White horses are either Max Sabino (Sb1) or Dominant White (DW) and neither cause blue eyes. (and of course homozygous for LWO which COULD have blue eyes but they don't live long at all). You CAN get a white horse with blue eyes, if that horse also has splash or frame (LWO).
I do not think your sabino example is sabino at all, looks splash to me.
DW gene does NOT cause spotted patterns. Lp with a PATN does.
True roans never roan out as they age. You can't always see the roan until their foal shed.