What do you think is going on here?! is this Weddell making a seal snow-angel or dreaming of swimming? Any ideas?

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Weddell seals spend much of their time below the Antarctic ice. They have the southernmost range of any seal, but find the chilly waters rich with the prey they seek. By swimming under the ice, these seals can often avoid their main predators—orcas and leopard seals.
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Weddell seals can dive up to 2,000 feet down and stay under for up to 45 minutes. But no matter how deep they dive, like all marine mammals, they must surface to breathe. If natural openings are not available, Weddell seals use their teeth to open and maintain air holes in the ice pack.

National Geographic