I initially thought that the full images not shown on 2 of the sections was still due to the update from a few month ago, but I just noticed when logged out, or if I change my theme to the default, that both the Play Raw and Showcase sections are actually shown with full images like this:
I’m not the site maintainer but what I know is this: When discourse 2.8.0 was rolled out (the software that runs Pixls) a few bugs/issues, that still need to be tackled, showed up as well. This is one of them. Here’s the topic (linked to the reply that gives the reason why the reviews are turned of right now):