My user Christian Christian@ThinkPadT430 - Christian is obviously linked to some wrong profile picture. I have not uploaded one, nor am I the person on the picture... Don't know how this can happen, I have seen it for the first time now.
We do our best to map users to who they are on Bitbucket. It seems you should be more explicit about who you commit as locally, so we can correctly map here on the site. I suggest using your email address.