[Theme: Twenty Ten] Page images not centered.

Hello there, I would like to know how to get my images to be centered on my pages. They are all aligned to the right. I have tried centering them but to no avail. For the template I have one column no sidebar. It happened on all my portfolio pages and my home page. I’m assuming its some where in the style sheet but not sure exactly where.

I’ve included my website for referencing.

Thanks so much!

https://laurieoneil.com/

https://www.ads-software.com/extend/themes/twentyten/