I’m okay with
Iona but thoroughly bored of
Isla. I have had an
Isla X,
Isla Y and
Isla Z and at times 2
Isla X so you are asking what their middle names are so you can differentiate between them in my brownies for the last 10 years. Just as one leaves another one joins.
I get the Scottish Island theme but would be more likely to use
Ailsa than
Isla.