Preview page Image orientation

I picked up some work updating images on a website that someone else had created managed previously. I determined how it was laid out enough to get what needed to be done done. However, two images I added are showing in landscape orientation on the preview page but when the image is clicked on it shows properly in the portrait orientation. www.artbyheenan.com/art.php Its the first two images, if anyone can take a look and give me some input I'd appreciate it. Initially I thought it may have been the image size as it was rather large and I resized it to 200kb but still the same.

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