the background could definitely use either some clarity or just some work in general as far as making certain parts stand out more than others. right now everything is equally as sharp and bright and it's really distracting. also, theres quite a few different areas of a great amount of light, as well as the piece itself is overly bright overall. the bright lighting is fine but the areas outside of the light need to be darker for it to work well. also, if your text isnt going to have any texture on it anyways, put the layer above the lighting layers so it doesn't come out so choppy. i think the coloring could use some work as well.