I had to sit 4 metres away from my screen for that too look even decent, and I couldn't even see the screen from that far away.
Too pixelated.
But when I did manage to see you actually did a backflip...
Nice, but you haven't landed it yet.
you really need to tuck. you'll be able to land them way easier and with half the effort. be careful though, you might over rotate the first time sense your doing it extended sense being extended slows the flip.