Those look great.
I am working on this very same project, using the Blue Moon 18mm range of French Revolutionary Wars. They even have two bags of Vendeans - one bag all musket armed and one bag with half-pikes, farm implements, etc.
Only thing I might not be able to figure out is where I can get some Vendean cavalry. I know they didn't have many anyhow though and they weren't exactly battle cavalry.
Love the flags too!