Those are extremely adorable! I'm inspired :) Haven't done nail art in a while due to a job that is rough on regular polish :( only gel holds up, and I'm lazy, haha. But now I'm motivated!
It was definitely done by an artist at a salon, Cute Nail Studio in Austin, TX. My artist was Tia, I'm not sure if she's still at Cute Nails, but I know her Instagram is @FingeredByTia