Image Distortion Issues

I am having issues with my images becoming distorted and chopped up. I have included a URL so that you can see what i’m talking about.

For my theme Duena, I have an automatic slider that takes the feature images and displays it on the homepage, when this happens the image box is so large…too large for my preference. You can also see this from the URL when you click on home tab.

http://mississaugadogwalking.com/a-fresh-approach-to-dog-walking-and-pet-services-in-mississauga/

This has been an issue I have been troubleshooting for weeks now and cannot seem to find the right fix. It should also be notes that i have a child theme installed, but I haven’t really added any of my own coding yet.

Please any help you could provide would be very apprecated, I am at the end of my rope with this.I am having issues with my images becoming distorted and chopped up. I have included a URL so that you can see what i’m talking about.

For my theme Duena, I have an automatic slider that takes the feature images and displays it on the homepage, when this happens the image box is so large…too large for my preference. You can also see this from the URL when you click on home tab.

http://mississaugadogwalking.com/a-fresh-approach-to-dog-walking-and-pet-services-in-mississauga/

This has been an issue I have been troubleshooting for weeks now and cannot seem to find the right fix. It should also be notes that i have a child theme installed, but I haven’t really added any of my own coding yet.

Please any help you could provide would be very apprecated, I am at the end of my rope with this.

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***I have already posted this question in the general support forum and it was suggested that I post here as they said I had multiple css issues.

Can anyone help me?

Thank you