I'm gonna be honest, this is some of the kinda content I was hoping you'd make. I love that the more solar girl talks in the animations, the more her personality shines through. Her chilled out nonchalant attitude is clear here, and this short is well rounded and awesome. theoppaiprincess did a great job doing her voice in this.
I like the different scenes, and each of them sharing that toned overlay look, like a animated comic. That isn't new since you've done this before but its worth mentioning here because it makes your style stand out, its fitting since shes a super hero. I like the friends designs, very cool to see she has other non-human friends that she can hang out with and not feel outcast-ed. Very cool how her color changes in the battery part, a small detail I think would usually go unnoticed but it makes it seem like shes actually doing something and not just standing in the tube naked- wait shes totally naked there isn't she... anyways. Glad solar girl has hobbies and her "fiddling" with her guitar twice was fun to see.
Unfortunately I hate to end it with some flaws but the lip sync is off, and its so close it makes me wish it just lined up! The background in some scenes like her waking up and the rollercoaster were more abstract and since it was only on screen for a few seconds it doesn't bother me too much but it does hurt the replay value. I like the little slice of life shorts, as well as the action oriented ones. Great work dude!