Tagging also works for pictures. Because Google doesn't have an algorithm that understands pictures so if you want your images to rank, then tag them and also add Alt Text (Alternative Text) this is in case the image doesn't load on someone's site they will still get the text. Again in the Alt Text make it clear what your picture is about that's relevant to your post.
A few things before you go.
You can write more descriptive tags. What you need to think about is how people search for things online. If you can pre-guess what they are going to write you are ahead of the game.
You can also test your tags in Jaaxy to see how they rank. Here, in my opinion, the more people looking for your tags the better, but that is not the same for low hanging fruit. You still need low hanging fruit for your post title.
If you want to understand what categories are all about go here;
All About Categories
If you have any questions please ask. If something is not clear let me know.
VonnieOh had this question;
So I took a look and see all that low hanging fruit he has at his disposal?
So many tags the mind boggles.
If you have found this of benefit to you please like the page and do comment, I want to hear your thoughts