Facet:
Thanks! Yes, the frame is meant to be a global UI. I wanted to design it a little big; I was hoping to give a sort of cramped/claustrophobic feel as well as use it to limit the player's view somewhat. If it gets in the way too much, I may have to scale it back, but that's my plan for now, heh. :3
You're right! I forgot about a mockup. I'll get right on that.
It's haunted but it's not abandoned, so I'm having a little trouble with the atmosphere. I'm hoping some darkness will help. I Googled "mansion interior" and have been using the pictures I found for inspiration thus far.

Thank you for the link!
Tourist:
Oh man! I didn't even think of Scooby Doo! The only thing that I was directly thinking of was Sweet Home. More boatloads of inspiration, for sure.

If the story seems a little cliche, that's because I wanted it to be reminiscent of a campy horror movie, and Scooby Doo has a lot of the same tropes. Only, you know, less gore and death.
Just for that, I will have to have a character that insists that the monsters are just the groundskeeper in a costume. Until someone dies horribly.
Urrgh I'm pretty sure the perspective is inconsistent.

I'm so awful at top-down perspectives. I'll keep working at it.
Mockup:

Incredibly boring so far. I'm not 100% sure how I'd like to do the lighting yet (not to mention that I haven't pixelled any light sources yet) so I left everything as-is. I'm thinking of adding a black shadow to some of the other stuff, to match the sprite.