Metallic photo paper is essentially a photographic paper with a reflective layer (often described as a Mylar-like layer) beneath the emulsion. Compared with standard paper, it tends to produce a very glossy, high-contrast look with an added sense of depth and shimmer.

For a black-and-white landscape, it can work very well if you want a bold, dramatic print. The glossy surface and strong contrast can make tones feel richer and give the image extra punch, especially under a good light source.

The main consideration is style: metallic paper is not a subtle, matte presentation. If you prefer a classic, understated fine-art look, another paper type may suit better. But if you want the print to look vivid, deep, and striking on the wall, metallic paper is an appropriate choice for black-and-white.