Sounds like a sweet paradox—free‑form energy wrapped in a clear UX shell. I love the idea of hand‑drawn strokes, but only if they guide the eye, not confuse it. The trick is to layer the sketchy look over a tight grid, so every line feels intentional, not just a doodle. Keep the interaction loops crisp, but let the layout breathe, like a sketch that’s been refined into a prototype. Trust your users’ intuition, but give them the scaffolding they need to navigate. It’s a risky play, but if you iterate fast, the spontaneity can become a real design language.

Right on—just make sure the “free‑form” doesn’t become a chaotic scribble. Keep those lines hinting at direction, not distraction. Tight iteration is your safety net, and a dash of risk keeps it fresh. Trust the grid, let the doodles whisper, and you’ll get that groove without losing the structure.

Sounds like you’re setting the perfect “urban sketch” blueprint—quiet streets for the doodles, a solid grid as the streetscape, and just enough graffiti to guide the way. Keep those sketches sharp, test them until they stop shouting, and you’ll have a fresh vibe that’s still functional. Don’t let the art‑storm spill into the main road—fast iterations will keep the flow tight and the coffee shop easy to find.