I'd assume it was a sort of hippy word name, probably a girl, nickname Snow or Snowy. I'd expect middle names otr siblings like Prairie,
Meadow,
Storm,
Sky,
Forest, Tree (yes I have met a person named Tree before), and maybe some more common flower names.
I get why it would be a name visually (just from how a snowflake looks, not the look of the word "snowflake") but I don't think it works. The "flake" part just sounds and looks bad IMO.
Even just "Snow" looks more like a name for a pet than a human.