Hey there.
I decided to take part in this competition. I'm not sure if I can make it on time, but I will do my best Below I attach the preview of the ground for my scene. It took me about 11 hours so far. Everything there is a stylized gameart. It's also tileable. I created 3D sculpt, retopo, UVs, baked maps, painted textures, created the scene. And made sure that it is tileable. There are some errors, but I think there is no time to be perfect this time
Good luck everyone!
[WIP] Halloween 2015 Contest - ground tiles by Kar on Sketchfab