It’s a mini, will it fit on SE?
Some things that might impact if it will work:
this has magsafe
it feels most secure when the camera bump is secure in the leather bump (can see in one of the last photos)
the mini has square sides and the SE might be rounded?
brand new, it’s a tight fit on the 12 mini
I haven’t used mine more than once since it’s a tight fit and inconvenient to get anything out.
Hope this gives you an idea!