This is more stock than fanart... but I made it from scratch so yes, it's fanart too.
I made this for Pokemon related wallpapers/fanart/whatever. The original size is 1600x1200.
I made both ground and water type fields. However, for the water, if you want it to have a watery effect, you need to find your own stock textures to use. I just did this to avoid any crediting issues.
But you're free to edit it as much as you like for whatever you want. Just credit me please?
This is a Jpeg of course, but I have the original PSD file to make layering and everything easier for people. So if anyone happens to want to use it, PM me with an email address that I can send it to as a compressed file.
I'll upload it to megaupload or something eventually.