Hey I have a couple balls and I can't tell if their differences are typical, or if they are two different kinds! Can someone please help my identify my pets lol

Snake 1:
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http://s9.postimage.org/55epq341r/ollie.jpg

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http://s9.postimage.org/55epq341r/ollie.jpg

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http://s7.postimage.org/68ej8bozf/ollie_3.jpg

Snake 2!

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http://s13.postimage.org/v10dplyaf/sombra.jpg

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http://s14.postimage.org/uxg7k7935/sombra_3.jpg

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http://s7.postimage.org/b22vqxauz/sombra_5.jpg

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http://s15.postimage.org/3nqlh42cr/sombra_2.jpg