For close up photography you'll want to stay away from high iso speed. The picture you provided isn't bad, just out of focus due to shallow depth of field. The camera must have been set to a wide aperature (small number like f 3.5). When making closeup captures you want the smallest aperature you can master (large number eg f16). I'm not familiar with your camera, but for closeup photgraphy you might have a macro mode (should look like a flower picture). If not, see if you can set camera to aperature priority mode. At that point you'll be responsible for setting the aperature and camera will be responsible for setting the shatter speed. And yes you'll need a tripod for this to work. An alternative that has worked for me for table-top shooting is a bag filled with coffee beans.
Also, I was going to recommend photoshop, but it's kind of spendy. PS is a great tool for fixing any mistakes you or your camera makes.
Composition wise, use the rule of thirds. Just imagine a tic-tac-toe grid over your scene. Place the main subject at one of the intersections where the lines meet, in the third quadrant from any side (hmm, I don't know if this is clear enough). But, never place your subject in the center of an image. Hmmm, that's all I can think of at the moment.