Your best proof is filed under "throwback".
Brownwood Hotels is a hotel you helped open and still manage. On your page it appears as a throwback post and a few reposts. There's no before-and-after, no timeline, no numbers and no owner speaking about the result. You're also opening a new luxury boutique hotel in Port Harcourt GRA, and your audience only saw the job advert.
The fixTurn every project into a story series: the brief, the build, the hiring and training, opening day, and the first months of results. That's the content that makes the next owner call you.