Enhancing Retail Carton Box .ai Design

I have a .ai file of a retail carton box that I'd like to imrove a bit. It is quite white an perhaps need a band of colour. Info icons on the back need improving. Sales feature icons on the front can improve.
I'd like to work with a designer for an hour or so until I'm happier with the box. Its for UK market and adopting UK NHS colour palette mainly.