Elfen Lied is great if you like obsessive gore throughout the series
if you like the characters from Elfen lied however, the Author Okamoto Lynn did some pretty amazing manga series as well
Allumage is absolutely one of the most impressive one-shots ive ever read
and i know for sure the author is doing a series on ski jumping that is really impressive called Nononono
Im reading each new chapter obsessively and its really good stuff
(Edit) forgot to link his profile
http://www.mangaupdates.com/series.html?id=27513