When you submit a design, it is assigned to a group of nine other designs and goes to voting in the Community. During the Voting, your design is randomly paired with other designs from your group, and other players vote for their favorite.
This voting determines your design's Score out of 5, and is represented by yellow Stars. At the end of the Voting, you and the players in your group get ranked based on this Score: the player with the highest Score (most stars) wins the challenge!
In case two designs get the exact same Score, the player with the highest Total Design Value (golden crown icon) gets ranked higher.
When you are the one voting, you participate in evaluating other players' designs, and you get cash and other rewards for voting.