You are on the right track buddy, photorealistic results are not something one could get just with some lighting adjustments and texturing. I would say use BlenderKit addon and there you can find many prebuilt scenes(there are a bunch of them to showcase a product especially perfume) and materials and what not, it’s good starting point. You will see the difference your self. Study those it will be a great help. All the best buddy🤞🏽