Good idea to make promotion on all other social media channels.
Thank you for sharing your idea " I love Steemit "
I have made a promotion video which every steemian is allowed to download and upload it on you tube, facebook and vimeo.
Perhaps this article will be useful for you too.
https://steemit.com/money/@lichtblick/free-steemit-promotion-video-use-it-as-your-own-make-promotion-on-all-channels
We have a closed facebook group " We love Steemit ", where you can present your blogging art, pictures, videos and projects around Steemit.
Everybody is welcome who wants to present his/ her own art.