Remove all traces of her presence in your profile. This includes tags, pictures (shared or not), messages, comments she made on your profile, etc.
It is essential to do that so that you create space in your mind and don't make your profile look like you are still in a relationship.
Imagine if a new woman comes in your life... How will she feel if your profile is still packed with traces of your ex?
That's a massive turn off, right?
There are a couple of exceptions: that's for instance if you have kids together and she happens to be on some of those family pictures.
Even these can actually be taken away though...
No, it won't make you look like a kid if you do that. It simply means that you are taking back control over your personal virtual space.
To your power!