I'm having a hard time reproducing those images specifically. You could give them to GPT or something and see if it can use them as a reference. This style prompt got me pretty close before i ran out of free uses.
Style: Photorealistic matte-finish paperback cover, circa 1970s–1980s genre fiction. Soft analog film grain throughout, fine and consistent, not chunky or digital. Warm color grade shifting from deep amber to bruised purple-violet. Gentle vignette darkening at all edges, fading naturally rather than as a hard border. Colors slightly desaturated and warm-shifted, as if the image has sat in indirect sunlight for decades. Clean rectangular frame, no rounded corners, no rust, no physical surface damage. The aging is photographic, not material: faded pigment, slight color bleed, the quality of a real photograph printed on matte paper that has yellowed with time. Golden-hour lighting, hazy, no harsh shadows.