Illustrate a brilliantly designed, ancient-style steampunk postage stamp featuring a bat. This narrative scene is nestled under a dark midnight sky teeming with golden starlight and galaxies. The image is adorned with decorative, glowing gold lines. The whole scene is crafted on a rugged white canvas frame, styled in a pencil drawing aesthetic on antique yellow paper. This grand scene should echo cinematic film characteristics - a touch of film grain, vignette corners, certain tonal adjustments for color grading, and post-processing for an epic touch. The overall lighting should give the sense of a 35mm film shot, conferring an atmospheric, epic, stunning, and dramatically live-action quality.