Compare at the scale you will print
A coarse surface that looks distracting on a small proof may feel proportionate on a large image. Conversely, a miniature print can lose delicate features when the paper's relief is almost as prominent as the subject. Ask for a sample crop printed at the final scale, not only a reduced version of the entire photograph.
Choose a crop containing the important details: an eye and cheek for a portrait, a window edge for architecture, or a smooth sky and tree branches for a landscape. This makes the comparison more useful than judging a generic paper sample with an unrelated image.
Separate texture from sheen and whiteness
A textured paper can be matte, but matte does not necessarily mean textured. Smooth matte papers exist, as do photographic surfaces with their own subtle patterns. Epson's paper range includes both smooth hot press and textured cold press options. Those descriptions refer to particular papers; use the exact specification when comparing products.
The base color matters independently. A warm paper can shift the appearance of pale areas, while a brighter white can make a black and white image feel more crisp. Place samples beside the intended mat so you can see whether the boundary feels harmonious or accidentally mismatched.
Let the photograph lead
For a misty hillside, a gentle surface texture might reinforce the image's broad transitions. For a detailed nighttime skyline, a smoother surface may let small lights remain the main event. These are starting experiments rather than genre rules. The same skyline photographed with intentional blur could invite an entirely different paper.
View the sample under ordinary room light as well as a light coming from the side. Raking light can emphasize the paper's relief. Once framed, avoid pressing the sheet against glazing to make it seem flatter; ask the framer to provide a presentation suited to the actual paper. The final choice should serve the image from its normal viewing position, not merely feel impressive when held in the hand.