Well unnatural is coloring like this isn't exactly "Very Rare" as much as mostly I stick to using unnatural as special occasions or events.
I'll often release a regular adopt that's unnatural even as far as this just from time to time or in a batch or as said events.
So not an exact rarity on that verse it's actually more rare for a pure white or black or even other types without any markings, no dapple, and little to no fading of color.
This is actually really beautiful just need a little work on the patches meeting with the white. (And that's mostly just around the back white patch, rest is fine.)
Otherwise this is lovely and I love it!
I rally love what you did with the colors!
Your first and third are my favorite of the 4.