Inspiration: Great use of the three games you drew.
Usability: This would be a snap to run, and I like that it's built for speed, like all good Shadowdark adventures should be.
Vibes: The NPC portraits are amazing. And the Stolen Veggies. That cucumber has so much personality! All of the art is great, really. Even the "pixelated" Shadowdark banners. So clever.