Charlie and his wife are starting a bakery website, but he's having trouble cleaning up the images he took with his camera phone so they look nice and clean. Leo says that the artifacts he's seeing may be due to low light or highly compressed images. He recommends trying to take photos with a better camera. Or, take the subject out of the image using Photoshop.
He doesn't see the artifacts in Photoshop, though, only on the webhost. Leo says that means the images are being recompressed to make them as small as possible. That's something he'll have to take up with his web hosting. Leo suggests switching to Squarespace.com for hosting.
(Disclaimer: Squarespace is a sponsor)