Thanks for passing that along! I'll definitely pull from that next year. And I would definitely recommend starch!
This snowflake is a modified version of this pattern: https://www.etsy.com/listing/903188791/lorewoven-snowflakes-crochet-pattern-3
I really like her patterns in general. I've also found many textured or 3D snowflake diagrams on Pinterest. Those are often a bit harder to interpret and you may have to take some creative liberty with them.