Thank you for providing images to the commons. Please keep in mind that images and other files on the commons must be under a free license and should be usefull to the wikimedia projects. To allow others to use your files, some additional information must be given on the description page. Most importantly:
Describe what it is about in a short sentence. (What does the image show?)
State the author and the date of creation. If you made it yourself, say so explicitely.
If you did not create the file yourself, state the source you got it from.
Add a Copyright tag - images without a appropriate license tag will be deleted.
Add the image to one or more gallery pages and/or appropriate Categories, so it can be found by others.
If you copied the file from another wiki, please copy all information given there and say who uploaded it to that wiki.
Please add as much information as possible. If there is not sufficient information, the file may have to be deleted.
The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.
Unfortunately, your account clashes with another account also called Zwoenitzer. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Zwoenitzer~commonswiki that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name.
Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.