Next part was to create realistic SSS and candle flame effects. Well, SSS was easy to handle with my textures but flame was the hardest part. Finally I find a way by multiplying and mixing bunch of falloff nodes in Octane Render. And result was pretty convincing for me.
Especially I love the feeling when soft light of candles fell on the gold coins.
So candle creation is determined like this. After all items done, I will consider the setup of the scene and decide that what kind of candle, candlestick or candlestand is ideal for the scene.