As it turns out, that's garish. Eye-bleedingly garish.
So I replaced the red background with a deep blue, and used the red for something I haven't tried before: a snowflake behind the main snowflake, this time using "normal" mode for the brush instead of my usual "screen".
I wasn't sure I liked the way it looked until I experimented with lightening the sky a bit, and tried adding in the teal. It didn't really work as part of the sky, but I was surprised by how well it fit as part of the snowflake.
I still did end up brightening the sky, but subtly, with a faint dappling of lighter blue.
Here's what the pattern looks like when tiled:
If you want to learn how to draw symmetrical patterns like this, I've got a handy tutorial for you here.
And if you want to wear this pattern or use it to decorate your home, it's available on coffee mugs, dresses, iPhone cases and more in my Society6 store and my RedBubble store.
Here's what it looks like on some of the available items:
Society6 doesn't have a "view everything in this pattern" feature that I know of, so here are the links to the items in the picture above:
Hand & Bath Towels