I've been building a huge library of images that you are welcome to freely use in your projects. They are all original...all my own work. Seamless (tile-able) and standard. All I ask is to be attributed as indicated on my website:
http://soundimage.org/
I'm adding new ones all the time, so be sure to check back often. I sincerely hope that some of them are helpful :-)
As always, they're 100% free to use with attribution, like my thousands of other images and music tracks.
Speaking of which, please don't forget to check out my Ogg music packs. These packs enable you to bulk-download all of my music at once from various genres...hundreds of tracks. I even have a "mega pack" that contains all of my game music...over 1100 tracks.
Besides being a huge time-saver, the Ogg versions of my tracks loop really well in game engines...(Mp3 files sometimes need editing due to the Mp3 encoding process.) Plus, Ogg encoding sounds richer and fuller....almost as good as my original WAV recordings.