There is a suggestion to allow each participant to submit an arbitrary number of drawings (say, no more than 5), but only the best drawing will be used to determine the winner (i.e., the one that receives the most votes). Thus, if you have 2 drawings that are so beautiful that you find it difficult to choose which one to submit to the contest, submit both, and the voters will decide which one is better and by how much. However, there is a downside – the voting system will become more complex in this case. A simple poll will not suffice. But this is already a technical matter.