Will

I consider that this picture is intended as a fashion picture, so the emphasis is on the t-shirt. In that respect this pic is top. I can almost feel the structure, it feels as a natural soft material. The folds are crisp. Too crisp for a portrait, but excellent for a fashion photo.
For this fashion photo the choice of the model is excellent. The model is cute, but for me not so overwhelming that he distracts. Just 'the boy next door'. His charming freckles make his skin textured too. That makes his skin go so well with the texture of the shirt. Nothing in this picture seems coincidental, so I praise teh coise of this model. His arms are positioned in a way that favour the shirt. His left arm is the basis for the shirt, his right arm puts the emphasis on his shoulder and muscled upper arm. The message for me is that his is a shirt for regular sportive young men who love natural material.
The choice for B&W is the best, all emphasis is now on the structure; otherwise there would be too much distraction.
My critique concerns his lips that are unnaturally dark as if they are feminine red in reality and that just doesn't seem to fit the person. And also the very light iris. It has been lightened in post-production. For a portrait it would have been fine perhaps. For a fashion photo it distracts from the subtle qualities of the shirt.
Overall an excellent fashion picture that does what it should do: make the piece of clothing attractive and feelable.