The difference in light on your hand and be a and what is on the chicken in the background is too great. I'm not sure if it's where you held your hand in front of the picture, or if the egg and hand are in the shadow. Try to make the levels even out.
aha - I spot a monitor being used here... need to get the lighting perfect if you are going to get decent marks for this style of photography, but the hand and egg are too obviously distinct from the chicken.
nice idea...would have been much idea if you could have gotten a real chicken. maybe if you put more light on the hand and egg, to match the light on the picture of the chicken, it'd work better.