Wow, two days left and only two submissions.. Guess I should get started on being the third.. 
Clearly you haven't read the rules.

"# POST your card idea in the Card Idea Competition Submissions board. Once you've done that, provide a link of your card idea in this sticky topic found here"
The above requirement basically means that people ONLY need to post their submission in this thread found here:
http://elementscommunity.org/forum/index.php/topic,16211.0.htmlI personally don't like having two threads where people have to check for the card idea submission process, but the Card Idea Competition Submissions can help alleviate that by having people post their cards for approval there by the Card Curator (a.k.a. me).

That said, you can post submissions here, but I won't even consider them for the competition UNLESS you post in the actual approval thread found on the child board.