Can someone tell me this website theme/design??

[Leo Vasquez]

Hello! Im looking to start a couple of websites blog/landpage using Wordpress, and I have came across this site: http://www.greatcoloradohomes.com/blog/

and of course, the BiggerPockets Blog. 

I've noticed the images they both use are somewhat similar, and I was wondering if this is an specific Wordpress theme or how are these blog images created?

Of course I do like the whole overall of both websites, and Id like to build something similar, but im very curious about the way the blogs and the images.

Please let me know if you have any idea. Thank you.