Blog Feature Image Pixelated

For some reason my feature image is very pixelated? I am not sure what to do to fix the problem. I use high resolution images. I have tried resizing and changing the dpi to no avail.

Here is a link to my blog
https://photogbykelly.com/home/blog/

• This topic was modified 7 years, 9 months ago by ke11yurban.