I know the subject is the spider but I have to begin by saying that I really like the bright orange background. It doesn't hurt that orange is my favorite color. My biggest issue is with the spider. I feel that either there should be detail in the body to match the legs (hard to do with backlighting, I know) or the legs should also be in silhouette like body. Hope that makes sense.
Hey Milan, I agree with Ed on the nice warm color in the BG and I like the comp, and also agree you either need to add more light and details to the body to match the legs or black the whole spider out as a silhouette.