Decorate the bookmark subtly using motifs inspired by Santorini, such as waves, ceramic patterns, sun symbols, and bougainvillea accents. Keep these accents elegant and minimal.The overall style should feel like a luxury travel keepsake, combining layered papercraft, premium 3D clay miniatures, handcrafted paper textures, soft natural lighting, realistic shadows, collectible souvenir aesthetic, warm studio photography, highly detailed, vibrant, whimsical yet sophisticated, ultra-realistic, 8K quality.Avoid mobile app UI elements, device frames, navigation icons, hearts, menus, or interface buttons. The final composition should look like a premium handcrafted bookmark photographed on a tabletop, suitable for a luxury travel collection.