If you follow the link to the blog post that I just posted, the image is the 2nd row from the bottom, there are 2 pics of the little boys, 1 in color and 1 in black and white - I'm looking at the color one.
The "texture" is actually on the subject, not the background, and I'm probably not doing a good job of describing it. The subject just looks almost 3D to me, like the little boy just pops off the background and if you could touch the picture it would feel velvety. I don't think it's really a matte effect, although there might be some brown tones added to the shadows.
I feel like my images are very "flat" in comparison to the shading in these.