I think your keywords are ok, but multiple word tags are best. IE Red Cherry earrings, red rockabilly, rockabilly earrings, etc. Another good tip that really helped me was to repeat your tags in your title and the first sentence of your description. By having them in all 2 places, the internet knows you're there and what you are, which is good for SEO. You can also join the CindyLouWhoTeam (
https://www.etsy.com/teams/10713/cindylouwho-team ) which has a ton of great and constantly updating information on SEO, which is how you get found in search by Etsy and Google.
Cute stuff!