Adventure Time - Penguins
I'm sure it wasn't a huge mistake. It takes a while to adapt to new co-workers, especially if you were close with old ones. Based on my experience, ask for their advice and feedback occasionally, and be sure you aren't stepping on anyone's toes. If you have ideas for change within the organization, don't try to push too much at once. It's okay to ask why things are done the way they are. Good luck!