Soft 3D feature-animation style as in @Kids: @Kira and @Yan in the orange suits,

Soft 3D feature-animation style as in @Kids: @Kira and @Yan in the orange suits, boots, glowing backpacks and clear bubble helmets of @Suits and @Helmets, in pitch-black water at 4000 m lit solely by their white helmet lamps; fine marine snow drifts through the beams. In the water there are only the two kids and one single small viperfish with the anatomy of @Viper (only the fish), 25 cm long, ...