Thanks for kind words.
It'd be amazing, the more the better. I'd rather refrain from adding it to the tileset but if you create an "extention tileset" or something like that I'll be happy to promote it here and add a link in the description.
The reason is I sometimes get some beer money from people for this tileset. It's not much but I feel it would be unfair if you don't (even when none of us care much about money).
I hope you'll release your additions anyway. I'll be looking forward to it!