Thanks a lot. I really appreciate the comments.
I do am a beginner. I am currently learning the lighting technology for studio pictures.
All these photos were taken in photo studio. I did used the reflect board to brighten the shadow area. But I thought that slightly darker shadow make the object more impressive and imaginative. I also realized the pepper and girl's front hair are a little so bright, I will try to positioning the light source more reasonable in my future photos...