I changed the the contents of vegetables and light settings from the first shoot. I used underneath light this time so the subject got seen pretty vivid and fresh this time; but the one thing that that I struggled with was that the middle of frame had just right amount of exposure but the edge of the flame was dark. Then I tried two underneath soft-box put next each other, then the area where were exposed to the light got wider and softer, so the flamed area got evenly bright. I think it ended up succeeding in terms of lighting this time.