Edit image 1: keep the two kids, their poses, suits, helmets and lamp beams exactly. Replace every star-shaped snowflake with real MARINE SNOW: small soft irregular fluffy clumps of pale grey-white organic debris, like tiny cotton fluff and dust, different sizes, slowly sinking, visible mostly inside the two white lamp beams and fading to black outside them. The water is pitch black outside the beams. No crystal snowflakes, no stars. No text.
