Colagem de Fotos de Viagem de Kalmar

Create a beautiful 2x2 grid collage of these 4 travel photos. Top-left: a garden path through a wooden arbor. Top-right: a wide cobblestone waterfront path. Bottom-left: a large historic church with green domes. Bottom-right: a scenic view of a historic building across water. Overlay the text "Kalmar" centered in large elegant font with a subtle dark semi-transparent background behind it. Clean grid layout, no gaps between images.