In this question, users are invited to share their character sheets creations. I have made one or two, but they are in spanish language, so I don't know if they would be useful to many users.
The question aims to be broader. Is non-english content still considered useful in this site? Or should we restrict to English as our common language?
For that specific question, non-English sheets are probably fine. You're going to be presenting and explaining them in English, and much of the value of a sheet is in the visuals and layout, which can be appreciated regardless of the language its labels are in.
In general though, answers and questions need to be written in English, just as a matter of SE policy. For better or worse, English is the lingua franca of large parts of the Internet, and that's the part of the Internet that SE is in.
