Two new kittens

Hello Everyone,
   
I am new to the site and haven't owned a cat in 20 years until I got two kittens only days apart from two different farms. They are about 11 weeks old now. I have had them since they were about 7 weeks. When I first got them you would swear they came from the same litter, even my vet thought they came from the same litter. They are Calicos and looked so much alike and even weighing the same, only 1/100th of a pound apart. The first one, Cali, I got from the farm behind me and know her parents. The other, Ali, I got 3 days later from a 600 ac. dairy farm about 30 minutes from the house. They are so cute and bully my Great Dane and JRT. They are afraid of nothing.
   
Ok, now to the reason for this post...They no longer look the same and each has very distinct features. I know they are not purebred but I am trying to get a idea of their primary breed, if possible. I don't even think they can be called Calico now, but Tordie or Torbie, not sure. They are tri-colored and female, but one is getting more and more orange each day (Cali). Cali's black is fading away to a combination of black, blue, orange and cream. She does have a lot of white, from the tip of her nose all the way back, on her underside. She has a few patches of orange stripe but the rest is now mixed in with the black/bluish color. She may even turn out to be long-haired because her coat just continues to grow out in all directions. She is much fluffier, with a much thicker coat and it isn't as soft as Ali's. Her ears are much further apart, almost set on the sides of her head, and they are very think. She also has a very full face with very defined cheeks and a smaller nose. Her eyes are almond shaped and are much further apart and smaller than Ali's. Her tail is about 2 inches shorter and twice as thick. Ali, on the other hand, has silky smooth fur with a very long skinny tail. Her ears are thin, long and very upright on her head. She has a much thinner face and pointy nose. She almost looks bug-eyed because her eyes are so big and round, compared to her thin face. Her body is also much longer and leaner looking, though they are the same height at the shoulder and the same weight. She had a few more orange spots than Cali, but she is primarily black with bits of orange blending in her fur. She is also white on her underside. The only real orange spots are where the black meets the white of her underside, face and feet. Both kittens orange patches are more of a orange/cream stripe, rather than a solid orange color. Another thing I find interesting, Cali has a wider paw and the nails completely contract, where Ali has a thinner paw and her nails are noticeable even when she is completely relaxed.
   
I'd include a picture, but I'm on my laptop at the moment and don't have any available. Any advice would be appreciated.
   
Angie
   
mom of
   
Daisy, 130 lb Black Great Dane
   
Shorty, 16 lb JRT
   
Ali and Cali, 2 lb Calico Kittens
   
and 30 chickens, Americanas, Brahmas and Cochins
   

Well, first off, "Calico" isn't a breed, as much as eye color or hair color is.
   
The term breed is human-derived, given to strains of domesticated animals so that humans can categorize them and breed them for their purposes. But they are all the same species.
   
In cats, "breed" differences have vanished in most domestic cats, except for people who breed strains of siamese, burmese, bengals, etc, most cats are simply known as Domestic Shorthair and Domestic Longhair which now means "mixed breed" and describes hair length.
   
Calico, Torti, Torbi, Tabby, Sealpoint, and dozens of other descriptions are just descriptive features.