Ann- Well done with your website, I like that it's simple, clean and easy to navigate. You've definitely gotten great suggestions and it looks like you implemented them as well.
I haven't yet had the opportunity to work in Joomla, but I'm wondering if there is a way to remove all the elements that makes the pages after the homepage look like blog posts. As they have author, date and time stamps on them.
Since you already have powered by Joomla on the bottom right, I think you don't need to also have it in your footer or even in your resources menu.
In your about page, imho, the bit about your music degree doesn't comes across positive. I think you should play on such a part of yourself that makes you unique...a talented musician
.
You don't provide design services, so you don't need to have the text about your limited design skills on your about page. Emphasize with you do great and not what you're not skilled at.
Hope this helps.