A note about art inventory:  when you add a piece of art (which has a 1 count) to your basket, it decreases the stock of them item from one (in stock) to zero (out of stock), which will then list the art as sold on its product page and in the listings. The system is presuming that if you've put it in your basket, you are going to purchase the art.  If it is in your basket, it is available.  If you abandon the basket, the one count item will be restocked within an hour.

To make changes to your order:

To change the quantity of an individual item, enter the desired number in the box below "Quantity"
and click the "Update" button. To delete an item, click the box "Remove" next to the item name.