Old exposure

I took this image a couple years ago while I was out with Jim Nieger on his boat. I was going through some old images and decided this was better than I originally thought. I was wondering what the rest of you might think. I added a little canvas to the right side and sharpened the image just a bit, and a bit of crop, but not much. Do you feel that the background is too cluttered? I don't think so, but I am interested in your thoughts on the matter. Shooting data follows:
Nikon D3
2010:03:05 08:57:04
200-400mm @ 220mm
220mm (in 35mm film)
Subject dist: 30m
1/500 sec, f/4
Mode: Av
Metering: Multi-segment
Exp comp: +1
ISO: 400
White balance: Fine weather
Flash: Off
File size: 22.1MB
Image size: 1276 x 873
Color space: AdobeRGB
Saturation: Normal
Sharpness: Normal
Contrast: Normal
Color profile: Adobe RGB (1998)