Distorted images on pages

I need help with my images. They are distorted on my pages. They are not showing true to the dimensions. For example, this page: http://overtimeoverseas.com/hayley/

My photos are set to be full size, and I have also tried to manually size them but they keep distorting. I am using the SiteOrigin Image widget. I have tried all available options (bound image, full length, etc.) and it is still distorted.

The images displayed perfectly fine for months until recently, perhaps due to the last WordPress update ??

Please help!