Three? I count two (cell phone and mouse). What is the third? The vented surface they are resting on? Since I cannot recognize what that is, I cannot count three items.
Hmmmmm, I only see two musketeers. Nice composition and lighting though. I love the sliver and gray tones, and the similarity of shape and texture that the mouse and phone have.
But the edge visible near the bottom of the picture is bothersome, as is the projection of light onto the background, it looks like it's coming through some blinds or a grate or something. Other than those two details, this is fantastic.
Very sharp focus, which is necessary to compliment the stark lines of the BW. While I like the image as is, I'd like to have seen a wider crop with more empty or negative space. It looks like the corner of a wood surface (table?), maybe a bit more of the expanse of the tabletop. The whitish, lined object just beyond the subjects is a bit distracting.