I have no opinion about the titles
. I don't think they're by any means her prettiest titles, but neither was Sparkle (in my opinion) and I love that song, so I can't judge based on the track list. I'm sure they'll grow on me. Sexy little things already has and I hated that title at first xD.
I wonder if the Don't look back PV is the one with the ballad-like PV. In the ViVi thing weren't there pictures of her in a white dress sitting at a table? I don't see this PV matching with any song except Don't look back and even that is a tough match.