Ok, I just completely started over on the wall. Here are two new ones. Any better?
And I was actually going for more along the lines of this type of wall,
by Cyangmou, or maybe this, by Kiwinuptou
Of course, my newest ones don't really look like that, but do they at least look readable as walls, or is there something else I should be doing. I think they might seem more like floor tiles than anything else.
Also, I was using the crate Cyangmou made in that picture to help with the shading and whatnot in mine. That's why my crate originally was darker in the middle like that. I'm still not happy with the shading on mine, but I'm not sure how to shade it to look like wood.
Anyway, thanks for all the help.