The back end seems to be sat down a long way and you don't look like a heavy fella so i'd say your rear shock wants some fettling. If you use the bottom edge line of the belly pan as a reference you can see that the bottom edge of the rear rim is about inline with it but the front is way below - indicating a problem with rear ride height. You might be able to sort it just by increasing preload.

The side wall of the rear tire is massive! It looks like the profile of the tire isnt designed for high lean angles - the tire is quite 'flat' in profile, hence the tall side walls. So when you lean a long way over, you soon reach the very edge of the tread, way before you do so on the front tire. That would be my explanation for your near crash too.
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