In case you're wondering how you can share your bickbuilds with the community here some links that may help you:

How to export/import brickbuilds:
http://www.escapistmagazine.com/articles/view/video-games/walkthroughs/14034-LEGO-Worlds-Early-Access-How-to-Save-Export-and-Share-Models

File Storage:
https://bricksafe.com/
mediafire <dot> com

NOTE: it helps to put your files in a .zip archive.
To create one just rightclick anywhere on your desktop > New > zip compressed archive,
after that simply drag and drop the .png, .lxfml and .prop file into the new archive and upload it