When you are making a nomination for a cafe, be sure to provide proof that they are more than just a generic business. Here is that part of the clarification:
Your example photo is not a great photo. It is very dark and kind of blurry. When I take a photo of a place like this, I try to center the photo on the name sign. If you get low and aim your camera up, you can avoid getting reflections in the glass. Don’t use this from Street View, but something like this
You can take your photos before you ever start your nomination until you get a good one. A little tweaking, like straightening and cropping, is allowed if needed.
I do very much like your wooden sign photo. But these are usually eligible for what they represent, rather than for being a sign. Google Lens couldn’t translate it for me, so I am not sure what the sign is for.