If I wanted pretty 10 year old boys, I'd be more into Johnnys Jrs.
That aside, her teeth does bother me. Eri, Airi, Reina, Dawa? I don't mind. Sawajiri's early teeth were adorable, and Tsuji's before her fixing wasn't too bad either. But Haruka's (And Meimi's, really) just... someone just threw them in there. When she's not showing her teeth though she can look good sometimes, I wouldn't call her ugly by any means. But I just... don't think that's that cute. At all. Hopefully she'll grow into her looks.
Speaking of... Mizuki has done LOTS of growing into her looks lately. Photobook please.