Hey @AllyNikk
In the Mood theme, the portfolio section is designed to be 4 items wide and looks quite nice when it is, so if you are going to add another item, you might want to keep it the way it is.
With only 3 item it would look better centered like the posts, you can do that by adding the following CSS to your Customizer:
@media screen and (min-width: 1032px) {
.front-page-block.portfolio {
width: 960px;
margin-left: auto;
margin-right: auto;
}
#portfolio-wrapper .jetpack-portfolio {
width: 33.3%;
}
}
Also just a heads-up that since your site has a Premium plan, you’re entitled to live-chat and email support, accessible here:
https://wordpress.com/help/contact
You’re welcome to still post in these forums, but those other support avenues may be faster, and you’ll always get a staff reply.