Thats an interesting idea! They have checked it now and unfortunately the middle cant be cut out straight through, and has to be closed. I think it will still look cool.

The competition is now open for voting if you want to check it out here is the link: https://steemit.com/steemsilverround/@phelimint/voting-is-now-live-for-the-2018-steem-silver-round-design