This is one of my first worlds I made in world painter in March of 2014. It has four continents, and every kind of biome. It is survival mode ready with resources all over. The size of this world is 4,000 x 4,000 blocks. The interior of the main continent is forest and plains. To the south of the volcano is swampland. The desert valley changes into mesa after some distance, and then savanah. There are many large mountains through out the map.