Yes, it is possible to re-order the items of a previous order either in full or partially, provided that the image data is still in our servers. The option to re-order a product is available in your WhiteWall customer account under "My Orders".
In the resulting overview, a list under “Completed Orders” will appear. You would then be able to select the order of your choice and click on “Details.” In the order details, you will find an “Order Again” button on the lower right. That places the items from your order into the shopping cart. You can then remove individual products from the new order or edit your selection.