I'm totally addicted to Disgaea games, I own 3 and 4 for my PS3 and the port for PS Vita :D
I love the characters! Etna is one of my favs :)
I used the pen tool in Photoshop for both lineart and coloring. Took me about 5 hours.
You can also visit my Pixiv http://www.pixiv.net/member_illust.php?id=1440254
or Photobucket http://s1108.photobucket.com/albums/h408/Morrow_x/
for a more complete collection of my vectors ^^