I like the composition with the fence post here, and the colors definitely pop in the sky and green fern behind. I agree with some other commenters that more detail in the fence would be interesting. There's a lot going on in this shot - I think that highlighting the fence would also help provide a strong focal point.
Such a well composed image; really good! I'd love to see more detail in the wood in the fence in processing, but I love the sky as is (awesome polarizing effect).
This is a strong composition with good color and contrast. The main subject, however (the fence post), is almost all in shadows. In pp I'd like to see more detail in the fence.
Roz- this image is crying out for some tonemapping. The lighting on the fencepost is neat, but it really obscures the right side of the post. It seems that could have been more dramatic if you were able to get a little higher so that we can see what is beyond the fence.