Running an online/eBay business from Spain

Does anybody have any experiences of making a living out of online retail from Spain?  I currently run an eBay store selling art prints and would love to relocate to Catalunya.  I have checked the postage charges for sending packages abroad on the Correos website and they appear to be over double the cost of sending a package from the UK to Spain.

On similar forums I have seen posts that state that the prices are cheaper at the local Correos offices.  Is there anybody out there that could offer any advice?

Hi, maybe get distributor in England to fulfil the item for you.

Thank you for your suggestion, but each item is printed to order.  My business model would not function if I had to print out a thousand posters that might take a couple of years to sell.