The reason for the look of the ad is that it is done by an illustrator, not a photographer. Illustration was essentially painting and drawing and gave the deep, rich colors that were far more dramatic than true-to-life photography, but as color photography became cheaper it began to be used instead of illustration. If you are a fan of old magazines, you can see many ads like this one as well as illustrations for fiction and articles. I remember the beauty of magazines around Christmas in the decade and a half after WWII, with gorgeous Christmas Trees that were the products of talented artists painted into ads for radios, televisions, furniture and other consumer products, even towels, linens and housewares. The color, perfection and detail could not be achieved in real life. These mostly unheralded illustrators brought a huge amount of beauty to the lives of people who read magazines; maybe not like they would see in an art museum, but beautiful pictures of clothing, homes and furnishings that caused them to go out and look at and maybe buy what they had seen so beautifully portrayed in the pages of a magazine that probably cost less than a dollar.
As you enjoy a POD, you might want to appreciate the art form it is.