The art is excellent and all, but the gameplay needs a bit of tweaking. Dead bodies blend into the background and foreground too much, climbing is super weird, and the dash doesn't seem to have any invincibility on it. A block or parry would also go a long way in terms of survivability.
I'm sure this is a problem mainly steaming from the demo, but faster but weaker weapons like a short sword of lance would add a lot to the eventual longevity of the game. As it is now, it'd kind of be like Castlevania but with only the Ascalon and variations of it. I'm sure this will be a winner in the future with more content.