Subject is art :) look at the photo below :))

The images both use texture, this is because the images looks like it would feel like something. They are different by the texture as well, one would feel bumpy while the other image might feel like a human. The similarities are, they are both in their own art style, they have the look of a texture, they seem 3D, both seem to be done in pencil, and both are portraying an emotion.

Explanation:

I really hope that helps ^^ (also id.k if the 'BW 3/11' is important or not sorry)