If you have created that masterpiece and want to show it off to the world but do not have webspace to host your images, here are some websites that will allow you to host your imges online for FREE:

http://www.freeimagehosting.net/
http://www.theimagehosting.com/
http://www.imageshack.us/
http://www.imageshack.us/
http://photobucket.com/
http://tinypic.com/
http://www.villagephotos.com/

Keep in mind as well that if you are wanting to use an existing image that is the property of someone else to build you art, there may be copyright laws involved. Don't get yourself in trouble, here are some links to information about copyright:

For more information on Copyright Law and the Internet, please visit:
http://www.templetons.com/brad/copymyths.html

TEN COMMON COPYRIGHT PERMISSION MYTHS
By Attorney Lloyd J. Jassin
http://copylaw.com/new_articles/copy_myths.html

Top 10 Urban Copyright Myths
by Richard Keyt
http://www.keytlaw.com/Copyrights/top10myths.htm