I'm having the same problem with this one as I did with others in this challenge...it is too close up to get a feel for what it should be and therefore makes it hard to judge the texture element.
Like the suggestion of landscape in this weathered tree-stump (?) The rhythm of the circles shows well in black and white. Beyond that, lacks a fair bit of interest for me - noothing grabs and holds my eye, and doesn't have that real detail of focus and lighting that are needed to reveal the texture, though that could also be simply the light you've chosen.
This overall pattern effect is a fine take on the Challenge, but maybe it would also be good if you added a contrasting shape to this nice composition to give it added interest. Good job.
The shadow really separates this from the rest of the pure texture entries. I might have increased the depth of field to really bring home a top score, but this is above average.
The highlights and shadows captured definitely gives a great sense of the rough texture in the subject. The dynamic angle used really makes this composition very interesting. Reminds me of the rippling of a splash in the water. Excellently shot. "10"