Shop Banner Design Needed

I’m refreshing my storefront and need a professionally designed printed banner that immediately grabs attention. The banner must showcase our logo, clear contact information, and a concise promotional message. I haven’t locked in final dimensions yet, so I’m open to your recommendation on size and orientation that will work best for walk-by visibility and easy installation.

Your deliverable should be a print-ready, high-resolution file (CMYK, 300 dpi) along with the working source file so future edits are simple. If you can provide a quick mock-up before we finalise the layout, even better.