Man, as good as the painting style is, seeing an emotionally distressed Lucky Star character just seems wrong on a cosmic level. A few other pieces in your galley paint a common theme.
'Course, this might be a meme I'm not aware of, with happy characters getting drawn sad, but it might not be.
But hey, I know people that do vent art to cheer up, so hopefully this was therapeutic for ya.
Best wishes for anything you're going through right now, and know that there are people happy to talk things out with you if you need it. :)