Here are some sprite concepts I've been tinkering with. I'm doing a big project right now so I haven't had a chance to expand upon these, but I just thought I would share these with you all. I hope that you guys like them.
CVJ Dracula
CVJ Simon Belmont
CVJ Death
CVJ Sypha Belnades
CVJ Trevor Belmont
CVJ Golem
CV Curse of Darkness - St.Germaine sprite.
And here's some older stuff from me, that was for that guy Quasar's project. An 1800's (think Bram Stoker's Dracula era) female character named Rosalind Graves (descendant of Nathan):
Walking and crouching Rosalind Graves
Attacking 1 (Slice), with generic rapier placeholder.
Attacking 2 (dash thrust)
These are all compatible with the "Castlevania" style of sprite heights, widths, etc. Dracula and Golem are even the size of the usual 'tall enemy'.