vivid poster mockup captivating pink background elegant floral design playful white balls generative ai vivid poster mockup captivating pink background elegant floral design playful white balls generative ai rgb editable psd 4k resolution pink flower poster floral poster design pink background poster white ball accents pink and white poster floral mockup template pink floral art pink and blue ball pink flower box pink and white design pink flower art floral background mockup pink and white mockup pink flower illustration pink and white floral pink and blue accents pink floral pattern pink and white art pink flower graphics pink and white theme pink floral elements pink background art pink and white composition pink and white visuals pink flower motif pink and white aesthetics pink floral creativity pink and white harmony pink flower style pink and white elegance pink floral inspiration pink and white balance pink flower imagery pink and white sophistication pink floral beauty pink and white charm pink flower allure