To be fair, horror can be a difficult genre to do right. Personally, I love the Gabriel Knight series and Lovecraft's work, but there was something about Vera Blanc which felt really bland and uninteresting. The art style didn't do it any favours, I think. Not because it's something other than anime or bad quality overall, but because it gave off this sense of beige blandness as well. From the introduction, both the characters and the narrative settings sounded very familiar in an unappealing way, as if I had already seen the same stories done elsewhere a number of times before. Other games of yours stood out a lot more, either in gameplay style, characterisation or setting, which is why I think they didn't have the same problem.
If the Vera Blanc series was revamped at any point, I'd be looking into ways to make it more unique within its genre. The Walking Dead by Telltale Games for example, would be just another zombie flick in a very saturated genre if it wasn't for their narrative approach, which cast the whole affair as a character-based melodrama centered around human relationships, morality and the futility of survival in a post-apocalyptic world.
Also, I think the characters could use a bit more vulnerability. Vera's initial description portrays her as beautiful, incredibly rich, charismatic AND gifted with supernatural powers. The combination of all the above turned me off as a reader/player, because the apparent lack of flaws makes her seem less human and more like a cut-out caricature of a person, like an Harlequin romance protagonist. It's difficult to empathize with characters who seem so perfect and invulnerable.
Sorry if I sound really critical, I just thought detailed feedback would be best for this kind of discussion :D