Meant to put this on the other comment, clicked 'add comment' a bit too quickly...
The other two originals are [link]
If you want to be here to appreciate art but don't have your own, that's fine. You can build up a favourites collection by clicking 'add to favourites' next to the pictures. This means you get to share them with other people who visit your page, and the original artist gets the attention they deserve.
If you have pictures saved on your computer that you want to find the originals of, if you go to [link]
then click on the camera icon, you can upload a picture and Google will find all the pages it can with that image on. If you're lucky, the original will be on DeviantART and you can find it there.
Unfortunately you can't share pictures that aren't on DeviantART. If you really want you can write a journal and put them in there using HTML, but this site is really meant for pictures by artists who have accounts here.