The brown pocket square creates a soft folded accent in the navy double-breasted jacket. Its colour returns in the long tie over a white shirt. Small pale lines run across the jacket, with pins and a draped decorative chain higher beside the lapel. The crop includes upper trousers and a hand at the side, rather than a full lower silhouette. No object at the chain’s end is shown, so its visible shape does not confirm a pocket watch. The documented styling relationship is the brown square against the dark jacket and nearby details.
Try the brown colour relationship on your own jacket first. Put a real brown square beside the intended tie and decide whether both should receive equal attention. Place it slightly lower for a second picture, leaving more navy between lapel and exposed edge. Add a chain or pin individually afterwards only if you intend to wear one. Against a patterned jacket, the fold itself may provide enough variety. Assess from conversation distance with relaxed arms before selecting a substantially larger visible square or changing several accessories simultaneously.