I think that this shot is very well constructed. I like the crop, and flow of the pic. Interesting subject and great color potential. Fatal Flaws: Out of focus. Clarity is the #1 issue in photography. You shot this with a
90-300 mm lens and i would guess that you did not use a tripod. There is a rule of thumb that I will probably misquote but it has to do with the relationship between the focal length and the shutter speed when hand holding a camera. In short you would have reasonably needed to use a 1/90 or faster shutterspeed if you did not use a tripod. Your slow shutterspeed made clarity impossible. I would recommend looking up the correctly stated rule.Its important.
Good luck
--jrjr
Looking at this I can definately see the texture etc, but as the shot isn't in focus it's a little different to give it a top score. Maybe a faster shutter speed, bump up your ISO to get that if it's too dark. A great effore though, 7