@yallapapi can be critical of Steemit, but to me the novelty has worn off. I do like to read his posts, but I don't pay as much attention to him like before.
I made my footer just using canva. You can choose the dimensions you want and then try and and see what layouts you like. Once you make it and it looks nice when you post it on Steemit/Busy, then you can save the URL link for the picture in a text file on your computer so that whenever you make a post, you can open the text file, copy and paste the link again and voila.
@amritadeva wrote a post here about making a logo, footer and page break. This is her page break and I think it is really nice. It suits her style.
You could probably make it on Canva. I haven't made my own page break yet but I will probably make one today.