This requires your own hands-on ability! First of all, there must be a good photographic environment, that is, scenery. Generally pure black or pure white. This can better contrast the atmosphere and highlight the main body. Then there is whether the light source is good or not, which is hard to say clearly. Good still life works need a good light source, and may need several light sources in different directions to set off the main body. You can try it yourself. It is also a pleasure to try it yourself! What SLR plays is tossing.