To give another deviant a direct link to this FAQ answer, use the following code in your comment or forum post:
How long will it take for my order to be shipped?
Orders which only include prints up to 20''x30'' will be processed and shipped within one to three business days from ordering.
Orders which include any of the following items can experience a delay on shipment up to two weeks from ordering because of the extended processing they must undergo. The following items may also be shipped separately to expedite the reception of your order.
Wrapped Canvas Prints
Photo and Fine Art Prints 20''x30" and above
You can check the status of your order by navigating to the shop side of deviantART and clicking on the "my account" button. This will take you to a list of all of your current orders and their status.