It is very possible that the pattern will be more noticeable as the snake matures. That is because babies don't have much (if any) of their yellow colors yet, and blizzards often (but not always) do get some yellow as they mature. Almost all blizzards have a faint pattern, at least under a strong light. But I have seen a few that I couldn't really see a pattern on.
But the pinkish color that most baby blizzards have usually disappears as their skin thickens and becomes less translucent.