you could make it better with some basic work
it looks a bit untidy atm. now that you have the hollow out the way you could focus on improving the branch structure.
currently there is too many crossing branches. clustering branches. the wired branches look a little contrived. primary branches that emerge from the trunk horizontally never really look right. it looks like they were forced into position, it doesnt look natural to my eye. dont take this the wrong way, i think it could be a nice tree with some more work.