Following this.
Right now I'm also setting up my etsy store and people seem to love my art on instagram.
One option would be sending traffic through social media, I'm thinking of Pinterest as their comes a huge amount of traffic for people interested in arts.
Doing giveaways on ig is another powerful option. While linking to linktr.ee where you have your etsy market, or even an hidden affiliate link.
They need to search for their favourite sticker and they need to comment the name in their post.
But be aware, there are some rules for instagram giveaways.
Take care and good luck!