How to find my blog’s rss feed url?

I changed my permalinks and now my rss url’s don’t work. I’ve tried the usual-

http://brilliantetc.com/artbycristi/feed/
http://brilliantetc.com/artbycristi/feed/rss/
http://brilliantetc.com/artbycristi/feed/rss2/
http://brilliantetc.com/artbycristi/feed/rdf/
http://brilliantetc.com/artbycristi/feed/atom/

None of these have worked.

When I switch the permalinks back to “default” this one works from the homepage:

http://www.google.com/ig/add?feedurl=http%3A%2F%2Fbrilliantetc.com%2Fartbycristi%2F%3Ffeed%3Drss2

This is great, but I would really like to keep my pretty permalinks.

Any suggestions? Thanks!