Nice textures mann.

Very woody.  The knotholes add a good touch of genuinuity. :)

Looks okay.

However, you could do without a color or 4.

Hi colin. Why not go transparent?

Also, you could add some wood-like patterns within the wood. Here's a great helpful video by Frankesmileshow

http://www.youtube.com/watch?v=-MOLg8u9_zo

Most beauteous texture. But it looks more like a pine bark then wood itself.