It might just be from being scaled down for a forum posting or my lousy vision, but I have a hard time spotting the crab's eyes unless I zoom in. Have you tried a tighter crop and getting rid of most of the out-of-focus foreground rock? If you have a large enough image, it might be cool to just have the crab in a sea of yellow. It'd make a good forum avatar.
The foreground adds a sense of depth to the picture imo, so I wouldn't really want to remove it. In a smaller picture it is hard to see the eyes of the crab, but I didn't want to post a huge picture on here.
Also, not sure if its your monitor or not, but its a sea of green.. =P