Exactly. It's like @djennyfloro says. If we copy the link of the picture above, we can see this:

<p dir="auto"><code>https://steemitimages.com/0x0/https://files.steempeak.com/file/steempeak/djennyfloro/NmxUuriN-falloxbow-1058032-639x266.jpg <p dir="auto">So, when we upload a picture in Steemit, it is saved in the servers of <code>steemitimages.com, in <code>files.steempeak.com or any other front-end. The Steem blockchain only saves that link to the image. <p dir="auto">Yes, it is partly decentralized. When those servers fall down, your pictures disappear.