If you purchase a photo you will be sent a link to a high resolution version of the photo with the watermark removed. That version will be ideal for many uses including creating prints on just about any background and from small to very large sizes.
Here are links to a couple of printing sites recommended by Wired magazine this year.
Additionally one well-known local photographer on Amelia Island recommends “I Print from Home.” The site has quite a range of options and I have seen the excellent quality of the prints in this gentleman’s home.
Another highly recommended site is CanvasHQ.