Well, it's got lots of yuri/GL ecchi moments, some of which border on smut, but no big-boobed girls on the cover. It does have 2 girls on the cover, though, in a somewhat suggestive pose.
Well, besides the yuri/GL ecchi (bordering-on-smutty) moments, there's also fight scenes and crazy-intense moments bordering on Madoka Magica levels of violence and emotional trauma.
I have yet to watch Madoka Magica despite listening to the music, Especially Kalafina's song Magia a literal fuck ton.
But uh, if Mother's Basement is right, now is the time for Witches!
So that's one reader already