I agree, it's very BLUE, more contrast and this piece will be amazing. The composition is great. Cool effects
I think he means with the overall lighting of the image. Imo the shading on the letters looks off since some are lit and some are not. Maybe if you moved the light toward the front so that it illuminates the object. One of my friends whos hobby is photography told me that you should always have the sun at your back while you're taking a picture
*---X----[]
*=lightsource
x=you
[] = object
cheers