Hollow tree...

A few years ago, there was a wind storm around out place.  It was in June; so many trees fell; roads were blocked, trails were blocked.  I had a picnic planned with the photo club and it had to be postponed because we could not get to the lake where the firepit is located. Things eventually got cleared up.
However, some of the trees which fell were hollow.  The above tree is about 3' in diameter; maybe a bit more.  Anyway, I have tried several times (spring, summer, fall, winter) to get a photo showing it, the insides, through the opening; just tried so many things, without the success I wanted.  I even have one with my feet sticking up into the opening.  I think my brother is going to cut it up now.  I thought a good use would be to cut in lenthwise and fill with soil to make planting pots.  Thoughts?