Lovely colour. You have classic mistake happening here - the focus of your camera is on the crab, not on the tool, which in this case should be the main subject. Be careful when locking your focus. Also on the right side it's a bit too tightly cropped (maybe you were trying to cut out distracting elements?).
the eye is drawn to the tool first, which sadly is out of focus. i'd like to see the image taken with more interesting background, a dinner plate candles, somthing to start me thinking. good effort.
This is an original shot. I like your idea of showing the tool IN USE. Good composition, but a bit out of focus. More saturated color would be nice, too. I do like it though!