For the back, I think you should keep the top specs box in place of the Warner banner and the quote. I think it's a lot stronger. To save space for the special features, try combining features on the same text line instead of having their own line.
For the front, I recommend coloring the skin with a single skin tone with the blending mode "color" so it's not a mixture of purple of yellow. I also suggest lessening the contrast the keep the skin tones under control.
[attachment=31647:hpv01.jpg][attachment=31648:hpv02.jpg]