Take a moment to imagine a group of magical anime girls. Be it the sailor scouts, glitter force, whatever. Now imagine that combined with various sources of power. Ye. That's what this is. Whole concept was because I thought "dang a character with like, smoke hair and some sorta puffy see through sleeves would be cool" which led to a radioactive girl and i was like "well, she's gotta have friends"
These are the basic designs and concepts for them. I might change their designs a lot over time, but they'll stick to this general guideline.
Based on nuclear energy, it's name comes from Uranium. They're the blunt, kinda mean broody one. It'll try to be super helpful and perfect all the time, which leads to them having meltdowns. Sola is their comfort person, and it likes to pick her up and squeeze her when stressed.
Based on solar power. Her name comes (obviously) from the word solar. Sola is the mom friend of the group, trying to help the others get over their issues and support them. The only problem is that she goes about everything in the most convoluted roundabout way possible, and often ignores her own needs.