You should try making some boot covers for whatever shoes you intend to wear because paint does not always work well given how much wear and tear footwear takes even over the course of 1 day. There are loads of very helpful boot cover tutorials in the Tutorial List sticky part 2
at the top of this forum.
If you do not own boots like those already, know that ankle boots are a popular style so you should not have trouble finding base boots like those at thrift stores, yard sales, or even department stores. Good luck!