wow that's really amazing and im happy to see you had use many steem apps have been use here for Exhibition i will be happy to add if you can add the steem promotional paper which is full of information all the features and the amazing tools of steemit ...
which people's will get full manual of steemit features and how it works it will really help them and at least give them idea of how join ....
Me individual when i start i say it's the social media which pay for your own post comments and in this steemit platform everyone helps each other this is what is steemit so keep #promo-steem and best of luck for the exhibition