"Generate an image of a disused railway station, specifically Finchley Road & Frognal Sidings, situated in the London Borough of Camden, United Kingdom. The station should be depicted in a realistic style, showcasing its proximity to Finchley Road & Frognal railway station and its location on the North London Line. The image should convey a sense of abandonment and neglect, with overgrown vegetation and possibly rusty or decaying infrastructure."