More information is available at the community portal. You may ask questions at the help desk, village pump or on IRC channel #wikimedia-commons (direct access). You can also contact an administrator on their talk page. If you have a specific copyright question, ask at Commons:Village pump/Copyright.
Hello, I am so sorry for answering so late - it is both because of my work duties and fact that you have written on my user page, not on discussion page, so i didn't get mail notification about new message.
Of course feel free to use my picture in your teams text (if you are still interested). I am very happy that someone asked of it, instead of using it even without a word about an authorship (few years ago as a student I took part in a lecture with presentation, with my artworks used by someone with no description of author :-)
If the edition of your text is still possible, I will be grateful of describing the authorship of the picture as "Aleksander P. Remesz" (my real name), not the nickname Orem or shortened form Olek Remesz.