Original artwork by Buch, Happyland tileset http://opengameart.org/content/happyland-tileset

I have created extra tiles and arranged them for 3-edge wang algorithm and 2-corner wang algorithm.

For information on how to implement wang tiles, there is an awesome website by Guy Walker explaining all about them.

http://www.cr31.co.uk/stagecast/wang/3edge.html

I hope these prove useful