This shot has potential as a nice abstract, but the focus isn't sharp enough for my liking. The other option is to go more blurry, which may work out, but of course then you would sacrifice the great texture.

Rust - good subject for a theme on orange. This one could have been a bit more vibrant though.

I didn't rate this image very good overall... It doesn't grab my attention, basically there's not much to look at. The pattern isn't really defined either... so what i'd recommend is to capture an image such as this with something a viewer can hold on to,... something he knows, a more interesting angle may be appropriate too, leading the eye along the image...