Actually, it IS too big. The "normal sized" one would be perfect. When it's too big, the viewers don't get to see much when it's brought to full size. Consider the resolution of most monitors. Mine is 1920x1080, but with a 25 inch widescreen, all I can see is the upper left corner- a wing tip to the talon and that's all. :\
Also, the boob eyes make no sense. But being what they are, you should really reconsider your thumbnail and the E rating.