painterly fantasy oil painting of a steampunk squirrel, surprised and worried expression, sitting in a wicker basket, flying a hot air balloon made of giant leaves, vines, the balloon beginning to catch on fire, and carved wood basket, dramatic dutch angle, wearing vintage aviator goggles, retro flight jacket, and flowing scarf, bright sunny sky, backlit glowing leaf textures, whimsical adventure atmosphere, rich oil brushwork, cinematic lighting, highly detailed fantasy realism, retro adventure art, flying high over Victorian London and the Thames River