I like the idea of leaning into Byrna being a robotics expert (I posted about her using a robotic army a while back in this thread), however this I'd be afraid of it basically making her into Batman's Mr. Freeze. When it comes to both of Wonder Woman's ice based baddies, I'd say Minister Blizzard would be more based on the magical side of things where Blue Snowman is based more on the sci fi element. This way we get the best of both magic and science fiction.