It can often be difficult to get a nice clear picture of your minifig or MOC, but if you follow these steps your picture is more likely to come out clear.
1. Take the picture outside on a sunny day. Having a few bright lights shielded by white cloth of paper towels can also help, but sunlight seems to work the best.
2. Make sure your camera is on its "Macro" setting.
3. Make sure the flash is off or the pieces will probably have a glare on them.
4. Put a white cloth or piece of paper beneath and behind your creation. Random objects in the background can really ruin a picture.