Okay, not much really to complain about. You seemed to be doing fairly well against Annie and were CSing fine despite your disadvantage. That said, you fell into the same trap Farolok did where you didn't finish pushing a wave fast enough so it would get stuck in front of Annie's turret. However, you were unlucky and got a smart Annie who was good at last hitting under her turret, so the few times you did push all the way it didn't help much.
On to your build. I know you said you miss-clicked the last Doran's Ring, but you only really need 2, not 3. The third would be if you were having a really hard time in lane and Annie wasn't beating on you all that much.
The last thing I noticed was your ult usage. A lot of your ults were badly placed or would knock them into you. A few times I was just like "he should knock them into the turret" and you would hit them away or straight to the side instead. Also the ult by dragon where it was just you and Lee Sin. It looked like you were trying to finish off Caitlyn when Lee Sin died, but when you knocked Annie and Shyv toward you that sealed your death as well. Better ult placement would have resulted in fewer deaths for yourself and maybe even a few kills.
I really don't play enough Gragas to pick out anything else, but those were what really stood out to me. Pretty good job though with the rest as far as I'm concerned.