Lagrande boulangerie

I am a producer and distributor of French baking good in Ukraine. I have a new line of product that I would like to distribute for supermarket. The product it's frozen croissant ready to cook at home by yourself, easy, simple, no need to be a baker, all is done, just set the oven temperature, the timer, put the croissants in the oven, and just wait 17 minutes and the croissants are ready to eat.
For that I want to create a nice and attractive box, a box that will attract the consumers to buy the product to try it. It's a high quality product, make by famous French baker with the finest ingredient. I already make some design, but I am not a designer, and I know that advice and idea are needed.