http://www.lyuboznaiko.com/index.php/2012/09/%D0%BB%D0%B8%D1%81%D1%82%D0%B8-%D0%B7%D0%B0-%D1%83%D0%BF%D1%80%D0%B0%D0%B6%D0%BD%D1%8F%D0%B2%D0%B0%D0%BD%D0%B5-%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B5%D1%82%D0%BE-%D0%BD%D0%B0-%D1%80%D1%8A%D0%BA%D0%BE/

As far as I know, it's quite the same as the russian handwriting. I hope, for a native Russian speaker like you, it'd be helpful. I'm not aware of any difference, but even if there are some, I think they are negligible, compared to how diverse the personal handwritings could be. Of course, it's worth mentioning that the bulgarian alphabet doesn't contain the letters: "Ё","Ы","Э" at all ..... if that counts as a difference. :)