Tutorials are completely understandable. Just make sure you are watching it and learning. Sometimes, I like to watch something in full first, then re-watch it and go step by step along to make sure I retain, and understand as much as possible. As opposed to just blindly following and copying without trying.
Just make sure it has your own creative flair on it, and adheres to the theme, and you should be fine. We do not want to see a one for one copy, make it unique and your own!
Thanks for asking! Good Luck!