Hi everyone! I've only been here for about three months but I think I can help.
Fill up your shop! People like options. you can renew for .20 I renew a painting every day, some shops renew every item in their shop every day- it depends on budget. Renewing will bring you to the top of the searches.
Make treasuries, consider joining a treasury team, this will get you lots of views! The more views, the more hearts, the more hearts, the more other people see your work (because of circles)
Finally be patient. There is a ton of stuff here on etsy, and it takes time to get seen. Here's to all our success :) cheers