I want to have more time but better quality in vray maya render, how?

for better quality visuals we need to focus on 3 things ..one is image quality, that means sharp edges and Crystal clear, for that we need to tweak on image sampling(DMC). Second one is better lighting, for that we need to decide mood,what kind of mood are you looking for (Dusky mood or night mood or sunny day mood).And finally Shading for that we should be careful on material properties