Create an image of SanVanBird, a male anthropomorphic seagull mascot character. He has a big belly, yellow beak, and tail feathers, with wing-like arms that end in hands capable of giving a thumbs-up. He is wearing an orange V-neck shirt and has striped orange legs. The character is standing outdoors in a city environment, looking directly at the camera with one thumb raised in a cheerful pose. The scene should focus entirely on the solo character, capturing a fun and lively mascot-style appearance.