I'm pretty content with my openings -- mostly because I based them off of openings that really gripped my attention in other series:
Bold statements, foreshadowing, and conflict (or the beginning of conflict).
Our Universe used a Bold Statement.
"The stars of our sky are cracks in our universe. She is dying."
And then we open up to Brenda as a child, watching the stars with her sickly grandfather.
These are just examples I've done, and they've worked so far. Because in the end, I want people to know the feeling first before they get the story.