When you look at the picture it's really difficult to say if the snake is real or made from plastic, but the colors are definitely very vivid. Also the rainbow effect on the snake skin in the middle is very nice. The focus is perfect for the attention to stay on the snake.
The only problem is maybe the distraction of the white on the left side of the picture. With such a tight contrast on the rest of the picture the overexposed effect of the finger seems a bit distracting. Maybe you could try to darken it a bit or blur the finger completely leaving only the snake sharp.