Could not find this great picture uploaded on booru, and I suck at finding anything at pixiv. Please, help Yuyuko with tagging her and linking to the source, if possible.

Sulejman said:

Please, help Yuyuko with tagging her...

If you have time and not lazy - read this article. Then see this list. All tags are linked and there is lots of examples.

DeadW@nderer said:

If you have time and not lazy - read this article. Then see this list. All tags are linked and there is lots of examples.

I am glad I learned a lot since then.