Hello and welcome @Videonas, the Wikipedia box should show images for articles with them, but we have been working on some issues with it - if you have any examples of searches not surfacing a box with image when it should then they’re very useful to us.
On favicons, it’s not super simple to add in, but it’s something we’ll consider for sure; it would definitely add some colour to results pages.
On the image search, would you find more utility if there were more sources? We’ve had that crop up elsewhere before so I’m asking to make sure your requests are logged properly.
On open graph images, in other places these can be seen alongside organic results and sometimes news. It’s possible we could display them at some point but we’d probably want some kind of image adult check before doing that.