You can view your profile at https://musescore.com/user/. Under your username, anybody can see your publicly shared scores, scores you have favorited, and any sets that you have created. On the right, anybody can see who you follow and who follows you, and any groups you have created. However, there is a lot more information you may choose to make available here, or not.
If you'd like to update your profile picture, please, see 'How to change MuseScore profile picture'.
In the account settings, the following sections are relevant to your public profile:
- Account / Contact settings
- Profile
For full details on these, see Account settings.