Way too much sharpening. It brings things more into focus but creates noise where there shouldn't be and makes those little white spots which are not attractive. Using a diffused light source with a greater dof and sharp focus would have gotten a better result than trying to fix it by sharpening. One way to help a photo that isn't as sharp as you'd like is to use contrast and curves.
A variety of shapes and colors. The washed out white detracts from the image's overall impact and the details in the carrot slices are missing. A little more lighting control to reduce the white spots created by reflecting the light would have helped. A unique presentation which falls just a little short.